Add translation sorting script, add format script, and change lint script to only check

[VillePihlava]

Proposed Changes

• Added a mostly AI generated file that sorts app/translations.js and a related sort-translations script
• Added a format script for formatting the project
• Changed the lint script to not change files at all, also checks if app/translations is translated
• Update CI node version to 24.14.1

NOTE

• Node version updated because reading translations.js with sort-translations.js has CommonJS/ESM problems.
• Updating node version causes mocha tests to fail because of CommonJS/ESM problems.
• For example: AppBar.test.js is parsed as ESM because of import instead of require. This causes failures later when using JSX elements

[VillePihlava]

I wonder if a check sorted translations script should be added for the lint script? This would make CI fail when not sorted

Edit: added it

[VillePihlava]

The unit tests fail because of CommonJS/ESM problems described in the description. This is caused by an update to node v24. We will have to discuss how to solve them.

[VillePihlava]

waiting for #5739