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/user.ts

@@ -749,7 +749,7 @@ const setCardOrder = (messageCard: HTMLElement) => {
         // addValue += side.length;
     }
 
-    console.log("Shortest order:", minHeightPerm);
+    console.debug("Shortest order:", minHeightPerm);
 };
 
 const login = new Login(window.modals.login as Modal, "/my/", "opaque");