list: fix activities sort, css improvements

fixed activities sorting.
less oddities from me not knowing how to use flex boxes. Also kinda
standardised a button-inside-input thing, so added a .gap-<n> >
.inside-input selector which works on gap-1 and gap-2.

ts/modules/list.ts

@@ -286,7 +286,7 @@ export abstract class PaginatedList {
 
         if (this._search.timeSearches) {
             const totalTime = performance.now() - timer;
-            console.log(`setVisibility took ${totalTime}ms`);
+            console.debug(`setVisibility took ${totalTime}ms`);
         }
     }