feat: add dropdown list for switching boards

[hillaliy]

Homarr

Thank you for your contribution. Please ensure that your pull request meets the following pull request:

• Builds without warnings or errors (pnpm buid, autofix with pnpm format:fix)
• Pull request targets dev branch
• Commits follow the conventional commits guideline
• No shorthand variable names are used (eg. x, y, i or any abbrevation)

[deepsource-io]

Here's the code health analysis summary for commits 1759279..a721ffc. View details on DeepSource ↗.

Analysis Summary

Analyzer	Status	Summary	Link
JavaScript	✅ Success		View Check ↗

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[github-actions]

Coverage Report

Status	Category	Percentage	Covered / Total
🔵	Lines	21.27%	8403 / 39488
🔵	Statements	21.27%	8403 / 39488
🔵	Functions	25.49%	312 / 1224
🔵	Branches	62.27%	951 / 1527

File Coverage

File	Stmts	Branches	Functions	Lines	Uncovered Lines
Changed Files
apps/nextjs/src/app/[locale]/boards/(content)/_header-actions.tsx	0%	0%	0%	0%	1-243

Generated in workflow #4704 for commit a721ffc by the Vitest Coverage Report Action

[Meierschlumpf]

Thanks!