[INTS25] - Start UI updates for admin dashboards

[eric-mxrtin]

Notion ticket link

Ticket Name

Implementation description

• updated dashboard to match current figma designs
• table columns changed, some style changes were made
• review dashboard rows are not expandable, but now show a side overlay

Note that the following have NOT been added yet:

• re-styling of some of the table features (search, filtering, column sorting, pagination buttons, tabs)
• changing the role pills to not have a default value (right now, the pills to filter roles are done one at a time, instead of being multi-select, and having an unfiltered default state)
• admin comments in the review overlay are not added since this backend functionality is not done
• interview stage is not started yet

Steps to test

1. Run local dev
2. Go to http://localhost:3000/admin
3. Explore both the Delegation and Review Dashboards
4. Notice the updates made to match the figma design

What should reviewers focus on?

BEFORE

• Delegation Dashboard

* Review Dashboard

AFTER

• Delegation Dashboard:

• Review Dashboard

Checklist

• My PR name is descriptive and in imperative tense
• My commit messages are descriptive and in imperative tense. My commits are atomic and trivial commits are squashed or fixup'd into non-trivial commits
• I have run the appropriate linter(s)
• I have requested a review from the PL, as well as other devs who have background knowledge on this PR or who will be building on top of this PR