Relationships overflow in Overview popup card

[PranavDike]

Description:
In the Schema → Overview tab, the popup card that displays tables, foreign keys, and relationships sometimes overflows when there are many relationships. Currently, there is no scrollbar, so part of the content becomes inaccessible.

Steps to Reproduce:

1. Open DBStudio and navigate to the Schema tab.
2. Click on Overview.
3. Observe the tables, foreign keys, and relationships displayed.
4. If there are many relationships, they overflow outside the popup card.

Expected Behavior:

• The popup card should have a vertical and/or horizontal scrollbar to allow viewing all content, or
• Dynamically adjust the card size to fit the content without breaking the layout.

Environment:

• DBStudio version: 0.1.0