Fixes #38252 - Handle boolean searchable_value displayed as true/false in search field

[lfu]

searchable_value is a text field in DB. So boolean value is saved as t and f in the DB instead of true and false.

Test Steps
Hosts - Content Hosts, and in the search field, you can add a query

Before
params.host_registration_insights = f and params.host_registration_insights = false
Both "false" and "f" will be presented automatically on Satellite . But you get accurate response only when selecting "f".

If you don't see params.host_registration_insights = false displayed on your server, just add a global parameter with string type and false value.

After
Both params.host_registration_insights = false or params.host_registration_insights = f would work with the same result.

[lfu]

Could someone take a look at this?