Introduce Prettier

[jonathanKingston]

Asana Task/Github Issue: https://app.asana.com/0/0/1208561434802767/f

Description

• introduce Prettier
• apply it to the whole codebase

Testing Steps

Checklist

Please tick all that apply:

• I have tested this change locally
• I have tested this change locally in all supported browsers
• This change will be visible to users
• I have added automated tests that cover this change
• I have ensured the change is gated by config
• This change was covered by a ship review
• This change was covered by a tech design
• Any dependent config has been merged

[netlify]

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[github-actions]

Temporary Branch Update

The temporary branch has been updated with the latest changes. Below are the details:

• Branch Name: pr-releases/pr-1198
• Commit Hash: 5be82493ff86dd094cafdaaee5151248f4697b99
• Install Command: npm i github:duckduckgo/content-scope-scripts#5be82493ff86dd094cafdaaee5151248f4697b99

Please use the above install command to update to the latest version.

[jonathanKingston]

@shakyShane can you double check there's not any silly gotchas here? If not I can double check some more tomorrow.

[shakyShane]

@jonathanKingston @muodov I ran this locally - all looks good to me. I think we can merge and just fast-follow with anything small that creeps in. What I've checked

• I ran npm ci (for a clean run) and verified that npm run lint-fix worked as expected
• I checked the CI flows, to ensure that prettier is invoked with --check (to prevent merges without formatting)