general: Remove periods from single sentences

This is done to align with the HIG rule about periods in single sentence
strings.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/3280>

js/ui/search.js

@@ -830,7 +830,7 @@ export const SearchResultsView = GObject.registerClass({
             if (this.searchInProgress)
                 this._statusText.set_text(_('Searching…'));
             else
-                this._statusText.set_text(_('No results.'));
+                this._statusText.set_text(_('No results'));
         }
     }