[To Main] DESENG-655: Add existing engagement fields to engagement wizard

[NatSquared]

Issue #: 🎟️ DESENG-655 Description of changes:

• Feature Add the existing engagement form fields to the engagement authoring wizard
  • Added fields for the existing data (engagement title, dates, internal/external, public slug)
  • Create button is now enabled when all required fields are filled
  • Users are redirected to the old form after creating a new engagement
  • (clicking "edit" on an existing engagement also brings you to the old form, as usual)
• Some extracurricular work:
  • Created a reusable component to warn users when they're about to navigate away from the page while editing content
  • Adjusted theming throughout the app to reduce the number of places where colors are defined
  • Updated to the latest version of @mui/x-date-pickers and adjust existing components where necessary

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of the met-public license (Apache 2.0).

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 82.60870% with 4 lines in your changes missing coverage. Please review.

Project coverage is 75.96%. Comparing base (55f54ff) to head (cd93814). Report is 6 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #2555 +/- ## ========================================== + Coverage 75.95% 75.96% +0.01% ========================================== Files 607 609 +2 Lines 21943 21959 +16 Branches 1707 1711 +4 ========================================== + Hits 16666 16681 +15 - Misses 5014 5015 +1 Partials 263 263 ``` | [Flag](https://app.codecov.io/gh/bcgov/met-public/pull/2555/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=bcgov) | Coverage Δ | | |---|---|---| | [metweb](https://app.codecov.io/gh/bcgov/met-public/pull/2555/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=bcgov) | `64.72% <82.60%> (+0.04%)` | :arrow_up: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=bcgov#carryforward-flags-in-the-pull-request-comment) to find out more. | [Files](https://app.codecov.io/gh/bcgov/met-public/pull/2555?dropdown=coverage&src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=bcgov) | Coverage Δ | | |---|---|---| | [met-web/src/components/common/Input/Button.tsx](https://app.codecov.io/gh/bcgov/met-public/pull/2555?src=pr&el=tree&filepath=met-web%2Fsrc%2Fcomponents%2Fcommon%2FInput%2FButton.tsx&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=bcgov#diff-bWV0LXdlYi9zcmMvY29tcG9uZW50cy9jb21tb24vSW5wdXQvQnV0dG9uLnRzeA==) | `95.45% <ø> (+1.13%)` | :arrow_up: | | [met-web/src/components/common/Layout/index.tsx](https://app.codecov.io/gh/bcgov/met-public/pull/2555?src=pr&el=tree&filepath=met-web%2Fsrc%2Fcomponents%2Fcommon%2FLayout%2Findex.tsx&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=bcgov#diff-bWV0LXdlYi9zcmMvY29tcG9uZW50cy9jb21tb24vTGF5b3V0L2luZGV4LnRzeA==) | `88.88% <ø> (ø)` | | | [met-web/src/components/common/Navigation/Link.tsx](https://app.codecov.io/gh/bcgov/met-public/pull/2555?src=pr&el=tree&filepath=met-web%2Fsrc%2Fcomponents%2Fcommon%2FNavigation%2FLink.tsx&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=bcgov#diff-bWV0LXdlYi9zcmMvY29tcG9uZW50cy9jb21tb24vTmF2aWdhdGlvbi9MaW5rLnRzeA==) | `100.00% <ø> (ø)` | | | [...ents/common/Navigation/UnsavedWorkConfirmation.tsx](https://app.codecov.io/gh/bcgov/met-public/pull/2555?src=pr&el=tree&filepath=met-web%2Fsrc%2Fcomponents%2Fcommon%2FNavigation%2FUnsavedWorkConfirmation.tsx&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=bcgov#diff-bWV0LXdlYi9zcmMvY29tcG9uZW50cy9jb21tb24vTmF2aWdhdGlvbi9VbnNhdmVkV29ya0NvbmZpcm1hdGlvbi50c3g=) | `100.00% <100.00%> (ø)` | | | [...components/engagement/view/ScheduleModal/index.tsx](https://app.codecov.io/gh/bcgov/met-public/pull/2555?src=pr&el=tree&filepath=met-web%2Fsrc%2Fcomponents%2Fengagement%2Fview%2FScheduleModal%2Findex.tsx&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=bcgov#diff-bWV0LXdlYi9zcmMvY29tcG9uZW50cy9lbmdhZ2VtZW50L3ZpZXcvU2NoZWR1bGVNb2RhbC9pbmRleC50c3g=) | `60.78% <100.00%> (-1.48%)` | :arrow_down: | | [met-web/src/components/layout/SideNav/SideNav.tsx](https://app.codecov.io/gh/bcgov/met-public/pull/2555?src=pr&el=tree&filepath=met-web%2Fsrc%2Fcomponents%2Flayout%2FSideNav%2FSideNav.tsx&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=bcgov#diff-bWV0LXdlYi9zcmMvY29tcG9uZW50cy9sYXlvdXQvU2lkZU5hdi9TaWRlTmF2LnRzeA==) | `90.90% <100.00%> (ø)` | | | [...web/src/components/layout/SideNav/UserGuideNav.tsx](https://app.codecov.io/gh/bcgov/met-public/pull/2555?src=pr&el=tree&filepath=met-web%2Fsrc%2Fcomponents%2Flayout%2FSideNav%2FUserGuideNav.tsx&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=bcgov#diff-bWV0LXdlYi9zcmMvY29tcG9uZW50cy9sYXlvdXQvU2lkZU5hdi9Vc2VyR3VpZGVOYXYudHN4) | `45.16% <ø> (-1.72%)` | :arrow_down: | | [...ublicDashboard/SubmissionTrend/SubmissionTrend.tsx](https://app.codecov.io/gh/bcgov/met-public/pull/2555?src=pr&el=tree&filepath=met-web%2Fsrc%2Fcomponents%2FpublicDashboard%2FSubmissionTrend%2FSubmissionTrend.tsx&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=bcgov#diff-bWV0LXdlYi9zcmMvY29tcG9uZW50cy9wdWJsaWNEYXNoYm9hcmQvU3VibWlzc2lvblRyZW5kL1N1Ym1pc3Npb25UcmVuZC50c3g=) | `78.82% <100.00%> (-0.49%)` | :arrow_down: | | [...web/src/components/tenantManagement/TenantForm.tsx](https://app.codecov.io/gh/bcgov/met-public/pull/2555?src=pr&el=tree&filepath=met-web%2Fsrc%2Fcomponents%2FtenantManagement%2FTenantForm.tsx&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=bcgov#diff-bWV0LXdlYi9zcmMvY29tcG9uZW50cy90ZW5hbnRNYW5hZ2VtZW50L1RlbmFudEZvcm0udHN4) | `77.38% <100.00%> (-1.51%)` | :arrow_down: | | [met-web/src/styles/Theme.ts](https://app.codecov.io/gh/bcgov/met-public/pull/2555?src=pr&el=tree&filepath=met-web%2Fsrc%2Fstyles%2FTheme.ts&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=bcgov#diff-bWV0LXdlYi9zcmMvc3R5bGVzL1RoZW1lLnRz) | `100.00% <ø> (ø)` | | | ... and [1 more](https://app.codecov.io/gh/bcgov/met-public/pull/2555?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=bcgov) | | ... and [1 file with indirect coverage changes](https://app.codecov.io/gh/bcgov/met-public/pull/2555/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=bcgov)

[sonarcloud[bot]]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud