misc: disable search and fix some accessibility violations

[lauzadis]

• Disable search due to performance issues (linked tracking issue in code along with FIXME).
• Address some accessibility violations
  • "Ensure keyboard focus is indicated visually"
  • "Ensure pages reflow without requiring two-dimensional scrolling without loss of content or functionality"
  • "Ensure all interactive functionality is operable with the keyboard"

Issue \

Description of changes

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[sonarcloud[bot]]

Quality Gate passed

The SonarCloud Quality Gate passed, but some issues were introduced.

1 New issue
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

See analysis details on SonarCloud