feature/404-page

[phixMe]

Problem

We're missing a basic catch all 404 page and this adds it.

Checklist

• [x] You've signed-off your work
• [ ] Your changes are accompanied by tests (if relevant)
• [ ] Your change contains a small diff and is self-contained
• [ ] You've updated any relevant documentation (if relevant)
• [ ] You've included a one-line summary of your change for the CHANGELOG.md (Depending on the change, this may not be necessary).
• [ ] You've versioned your .sql database schema migration according to Flyway's naming convention (if relevant)
• [ ] You've included a header in any source code files (if relevant)

[netlify[bot]]

✅ Deploy Preview for peppy-sprite-186812 canceled.

Name	Link
🔨 Latest commit	7c9c736eb0672b87af6e2b50a538e2dba7a58a7f
🔍 Latest deploy log	https://app.netlify.com/sites/peppy-sprite-186812/deploys/66d7781603a87700087b5db4

[codecov[bot]]

Codecov Report

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

Project coverage is 83.25%. Comparing base (66329d1) to head (7c9c736). Report is 1 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #2890 +/- ## ========================================= Coverage 83.25% 83.25% Complexity 1476 1476 ========================================= Files 259 259 Lines 6785 6785 Branches 313 313 ========================================= Hits 5649 5649 Misses 981 981 Partials 155 155 ```

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