style improvements

- added empty state to list
- styled scrollbars
- progressbar shows time elapsed
- timers are monospace
- prevent overflow in titles

client/src/features/editors/list/Block.module.css

@@ -17,7 +17,6 @@
   padding: 0.2em 1em;
   box-sizing: border-box;
   display: flex;
-  margin: auto;
   gap: 1em;
 }
 
@@ -68,10 +67,8 @@
   background-color: rgba(255, 255, 255, 0.36);
   background: linear-gradient(
     180deg,
-    #4bffabcc 0%,
-    #227c52aa 09%,
-    #4bffab11 10%,
-    #4bffab11 89%,
+    #00000000 10%,
+    #4bffab10 89%,
     #227c52aa 90%,
     #4bffabcc 100%
   );