Upgraded Next.js to 15.0.1

[Reterics]

Linked Issue(s)

Fixes #597

Acceptance Criteria fulfillment

Viewed/Tested pages:

• /teams
  • Add, remove, edit teams
• /dora-metrics
  • Settings -> Configure Production branches popup
  • Pull Request Insights
  • Calendar date changing
• /integrations
  • Removed Token, configured again
• /settings
• /system-logs
• Opened Help Assistant

Proposed changes (including videos or screenshots)

According to the article on https://nextjs.org/blog/next-15, Next.js 15 is officially stable and ready for production, so I made 2 commits in this PR: (Reason: in case if we need Next.js 14 instead)

1. I updated to version 14, and did my testcases above
2. and then updated to 15 and did them again.

Further comments

UI related warnings were there before the update as well such as: (There were not introduced in this PR)

• "CreateTeams.tsx:259 Warning: A props object containing a "key" prop is being spread into JSX:"
• "DeploymentInsightsOverlay.tsx:364 Warning: Each child in a list should have a unique "key" prop."

[jayantbh]

Well, that's a bigger PR than I was expecting. 😄
Let's get this merged before hacktoberfest ends! 👌🏽 🚀

[jayantbh]

Honestly the change I'm requesting at the moment isn't even worth blocking the PR over, except that the contributing guide changed significantly and this might need to weird confusions if this were to be merged as is.

Also surprised that there's not bigger breakages or type changes. We'll check this PR locally once.

[jayantbh]

Type checking doesn't seem to work via the CLI, but I suspect it isn't actually related to this PR.

➜  web-server git:(feat/next-upgrade) yarn tsc                                                      
yarn run v1.22.22
$ /Users/jayant/Projects/dora-metrics/web-server/node_modules/.bin/tsc
/Users/jayant/Projects/dora-metrics/web-server/node_modules/typescript/lib/tsc.js:116479
      throw e;
      ^

RangeError: Map maximum size exceeded
    at Map.set (<anonymous>)
    at recursiveTypeRelatedTo (/Users/jayant/Projects/dora-metrics/web-server/node_modules/typescript/lib/tsc.js:60782:18)
    at isRelatedTo (/Users/jayant/Projects/dora-metrics/web-server/node_modules/typescript/lib/tsc.js:60199:122)
    at checkTypeRelatedTo (/Users/jayant/Projects/dora-metrics/web-server/node_modules/typescript/lib/tsc.js:59834:20)
    at isTypeRelatedTo (/Users/jayant/Projects/dora-metrics/web-server/node_modules/typescript/lib/tsc.js:59778:14)
    at isTypeAssignableTo (/Users/jayant/Projects/dora-metrics/web-server/node_modules/typescript/lib/tsc.js:58892:12)
    at typeMaybeAssignableTo (/Users/jayant/Projects/dora-metrics/web-server/node_modules/typescript/lib/tsc.js:64446:11)
    at /Users/jayant/Projects/dora-metrics/web-server/node_modules/typescript/lib/tsc.js:64463:58
    at filter (/Users/jayant/Projects/dora-metrics/web-server/node_modules/typescript/lib/tsc.js:169:23)
    at filterType (/Users/jayant/Projects/dora-metrics/web-server/node_modules/typescript/lib/tsc.js:64752:24)

Node.js v22.10.0
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.

[jayantbh]

Okay, the issue I mentioned above is now fixed in main. Please rebase, address the super trivial comment left, and I think we're good.

[Reterics]

Okay, the issue I mentioned above is now fixed in main. Please rebase, address the super trivial comment left, and I think we're good.

After rebase i verified with "yarn tsc " you mentioned above. It is working. Hopefully it will be fine now.

[jayantbh]

Just confirming, did yarn tsc in the web-server module work fine for you?

[Reterics]

Just confirming, did yarn tsc in the web-server module work fine for you?

Yes it is working fine. (both Ubuntu and Windows 11)

[jayantbh]

Great stuff, @Reterics!
Thank you!