WD-8754 - update landing page

[lizzochek]

Done

Update landing page according to copy doc

QA

• demo link
• copy doc
• Check out this feature branch
• Run the site using the command ./run serve
• View the site locally in your web browser at: http://0.0.0.0:8002/
• Run through the following QA steps
• Check that the form is according to copy doc

Issue / Card

WD-8754

Fixes #

Screenshots

[webteam-app]

Demo starting at https://canonical-com-1180.demos.haus

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (99dbdbd) 66.55% compared to head (ff479ce) 66.55%. Report is 14 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1180 +/- ## ======================================= Coverage 66.55% 66.55% ======================================= Files 10 10 Lines 891 891 ======================================= Hits 593 593 Misses 298 298 ``` | [Flag](https://app.codecov.io/gh/canonical/canonical.com/pull/1180/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=canonical) | Coverage Δ | | |---|---|---| | [python](https://app.codecov.io/gh/canonical/canonical.com/pull/1180/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=canonical) | `66.55% <ø> (ø)` | | 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=canonical#carryforward-flags-in-the-pull-request-comment) to find out more.

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[lizzochek]

@mtruj013 updated