[Gtk4Prep] SearchResults: Use EventControllers, disambiguate view name

[jeremypw]

No description provided.

[zeebok]

Code looks good, I will give this a test tomorrow!

[zeebok]

Not sure if these fall under this exactly but I did notice some behaviors (at least when testing on OS8) that I am not sure are intentional with the search results

• When there is only one result, if you press the down arrow key like you would to change the highlighted result it simply closes the search results.
• If there are many results, pressing the down arrow at the last entry does not close like with single results, it cycles back to the first
• If there are many results, pressing the up arrow at the first entry does cycle to the bottom or do anything

[zeebok]

Code looks good and is what I see is reflected in testing. Not sure we want to address the behaviors I brought up here or save it for another PR. Up to you!