Implement form search in admin client.

[strdavis]

• [x] Implement search bar on applications list and claims list.
• [x] Implement case-insensitive substring search against target columns in admin API.
• [x] Do not perform search until 3 or more chars entered.

[sonarcloud[bot]]

Quality Gate failed

Failed conditions
19.6% Duplication on New Code (required ≤ 3%)

See analysis details on SonarCloud