fix: relation picker should not move once openened

[harshrajeevsingh]

Fixes: #7959

Problem

• When searching in the dropdown, the results list would shrink based on matching items
• This dynamic height change caused the dropdown to flip its position on each keystroke

Solution

• Added hasMinHeight as optional props to the DropdownMenuItemsContainer to maintain consistent height
• This prevents unwanted position recalculations and flipping while user types
• The dropdown now stays in its initial position throughout the search interaction

Screencast.from.2024-10-24.15-43-03.webm

[FelixMalfait]

Great work thanks!

[FelixMalfait]

/award 450

[oss-gg]

Awarding harshrajeevsingh: 450 points 🕹️ Well done! Check out your new contribution on oss.gg/harshrajeevsingh