Bugfix/deseng575 Language picker should only appear on engagements with more than one language

[Baelx]

Issue #: https://apps.itsm.gov.bc.ca/jira/browse/DESENG-575

Description of changes:

• Language picker should only appear on engagements with more than one language
• Language picker disappears completely when not viewing an engagement
• Allow for the web app to see if there are available translations by language
• Disable language switching itself for now until design decisions are made

I've had to kneecap the language switcher functionality until we can make some design decisions regarding what to do about:

• Language switching for engagements only vs. whole-site
• Sites that have differing languages between static and engagement content
• Location of the language switcher (we may move it so it's nested in the engagement rather than in the header)

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 85.18519% with 8 lines in your changes are missing coverage. Please review.

Project coverage is 75.76%. Comparing base (2ca9a8d) to head (2fe48f3).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #2496 +/- ## ========================================== + Coverage 75.70% 75.76% +0.06% ========================================== Files 590 589 -1 Lines 21107 21114 +7 Branches 1530 1528 -2 ========================================== + Hits 15978 15997 +19 + Misses 4882 4870 -12 Partials 247 247 ``` | [Flag](https://app.codecov.io/gh/bcgov/met-public/pull/2496/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=bcgov) | Coverage Δ | | |---|---|---| | [metapi](https://app.codecov.io/gh/bcgov/met-public/pull/2496/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=bcgov) | `87.89% <100.00%> (+0.02%)` | :arrow_up: | | [metweb](https://app.codecov.io/gh/bcgov/met-public/pull/2496/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=bcgov) | `63.52% <74.19%> (+0.05%)` | :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/2496?dropdown=coverage&src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=bcgov) | Coverage Δ | | |---|---|---| | [...t-api/src/met\_api/models/engagement\_translation.py](https://app.codecov.io/gh/bcgov/met-public/pull/2496?src=pr&el=tree&filepath=met-api%2Fsrc%2Fmet_api%2Fmodels%2Fengagement_translation.py&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=bcgov#diff-bWV0LWFwaS9zcmMvbWV0X2FwaS9tb2RlbHMvZW5nYWdlbWVudF90cmFuc2xhdGlvbi5weQ==) | `96.82% <100.00%> (+0.33%)` | :arrow_up: | | [...pi/src/met\_api/resources/engagement\_translation.py](https://app.codecov.io/gh/bcgov/met-public/pull/2496?src=pr&el=tree&filepath=met-api%2Fsrc%2Fmet_api%2Fresources%2Fengagement_translation.py&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=bcgov#diff-bWV0LWFwaS9zcmMvbWV0X2FwaS9yZXNvdXJjZXMvZW5nYWdlbWVudF90cmFuc2xhdGlvbi5weQ==) | `98.91% <100.00%> (+0.14%)` | :arrow_up: | | [...met\_api/services/engagement\_translation\_service.py](https://app.codecov.io/gh/bcgov/met-public/pull/2496?src=pr&el=tree&filepath=met-api%2Fsrc%2Fmet_api%2Fservices%2Fengagement_translation_service.py&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=bcgov#diff-bWV0LWFwaS9zcmMvbWV0X2FwaS9zZXJ2aWNlcy9lbmdhZ2VtZW50X3RyYW5zbGF0aW9uX3NlcnZpY2UucHk=) | `88.65% <100.00%> (+0.74%)` | :arrow_up: | | [met-web/src/apiManager/endpoints/index.ts](https://app.codecov.io/gh/bcgov/met-public/pull/2496?src=pr&el=tree&filepath=met-web%2Fsrc%2FapiManager%2Fendpoints%2Findex.ts&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=bcgov#diff-bWV0LXdlYi9zcmMvYXBpTWFuYWdlci9lbmRwb2ludHMvaW5kZXgudHM=) | `100.00% <ø> (ø)` | | | [.../src/components/engagement/view/EngagementView.tsx](https://app.codecov.io/gh/bcgov/met-public/pull/2496?src=pr&el=tree&filepath=met-web%2Fsrc%2Fcomponents%2Fengagement%2Fview%2FEngagementView.tsx&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=bcgov#diff-bWV0LXdlYi9zcmMvY29tcG9uZW50cy9lbmdhZ2VtZW50L3ZpZXcvRW5nYWdlbWVudFZpZXcudHN4) | `81.13% <93.33%> (+4.20%)` | :arrow_up: | | [met-web/src/components/common/LanguageContext.tsx](https://app.codecov.io/gh/bcgov/met-public/pull/2496?src=pr&el=tree&filepath=met-web%2Fsrc%2Fcomponents%2Fcommon%2FLanguageContext.tsx&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=bcgov#diff-bWV0LXdlYi9zcmMvY29tcG9uZW50cy9jb21tb24vTGFuZ3VhZ2VDb250ZXh0LnRzeA==) | `62.50% <62.50%> (ø)` | | | [met-web/src/services/engagementService/index.ts](https://app.codecov.io/gh/bcgov/met-public/pull/2496?src=pr&el=tree&filepath=met-web%2Fsrc%2Fservices%2FengagementService%2Findex.ts&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=bcgov#diff-bWV0LXdlYi9zcmMvc2VydmljZXMvZW5nYWdlbWVudFNlcnZpY2UvaW5kZXgudHM=) | `31.81% <50.00%> (+4.04%)` | :arrow_up: | ... and [2 files with indirect coverage changes](https://app.codecov.io/gh/bcgov/met-public/pull/2496/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=bcgov)

[Baelx]

LGTM!

Thanks @ratheesh-aot . I'm just finishing fixing the linter/test errors and will merge in a second

[sonarcloud[bot]]

Quality Gate passed

Issues
11 New issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

See analysis details on SonarCloud