[Frontend] - Add testing vitest for untagged bookmarks.

[R-Sandor]

Details

Create a test for:

• Adding a tag to an untagged existing bookmark should decrement the untagged count
• When all bookmarks are tagged the untagged count should disapear
• When a user removes a tag and makes a bookmark untagged it should add it to the untagged bookmark count.
• When all bookmarks are tagged and a user removes a tag then the untagged count should return.

Task

Write Vitests that cover each of these scenarios.

[SamBradley2024]

Can I be assigned to this please

[R-Sandor]

Thanks Sam!