fix: issue with foreign key constraint do to empty string for home board

[Meierschlumpf]

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)

Closes #2087

[deepsource-io]

Here's the code health analysis summary for commits bff5360..e26056b. 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	21.31%	8427 / 39539
🔵	Statements	21.31%	8427 / 39539
🔵	Functions	25.38%	311 / 1225
🔵	Branches	62.23%	951 / 1528

File Coverage

File	Stmts	Branches	Functions	Lines	Uncovered Lines
Changed Files
apps/nextjs/src/app/[locale]/manage/users/[userId]/general/_components/_change-home-board.tsx	0%	0%	0%	0%	1-80

Generated in workflow #4743 for commit e26056b by the Vitest Coverage Report Action