New entry button in search results view

**Is your feature request related to a problem? Please describe.**
Many times when i search for an entry in my database, it is to see whither i already created an account or saved a password for such or such website. When i see i didn't register anything, i usually create a new entry right away.
But the UI requires i backtrack out of the search results back to the main page, where i would find the "Create new entry" button.

**Describe the solution you'd like**
I'd like KeypasDX to provide me with a buton to create new entries right in the search results, by having the new entry buton appear in the results list. It could be the round floating button that's is already used in the main view, or a special "entry line" at the end of the results list that would say `Create a new entry`.
My main use use would be to make them appear vhen are no results to display, but having them appear with any amoant of results would cover more cases.

Start with the search results view and compare it with the main view's existing Create new entry button. Check the behavior for both zero results and nonzero results, then verify that a new-entry action is available directly from the results list without navigating back.

Written by the indexing model from the issue text.