[M485] Fix autocomplete highlight

[tienhoah]

Steps to reproduce:

• Select filter sites tool on top left map control.
• Click country input.
• Try to type ma (just an example), notice the highlighted text on all dropdown results.
• Try with different search on the other inputs as well (project, organization).
• Expected result is the dropdown list should have highlighted text from the search term.

Fixed this bug

[tienhoah]

Autocomplete bug where some of options are not highlighted when search.