styling & structure fixes to apps/dash/_parts/_applets.html, _dash.scss & _palette-picker.scss

src/static_src/scss/_dashboard.scss

@@ -72,7 +72,6 @@ body.page-dashboard {
 
     #id_applet_palette {
         padding: 0;
-        border-color: rgba(var(--secUser), 1);
 
         .palette-scroll {
             display: flex;
@@ -82,6 +81,13 @@ body.page-dashboard {
             height: 100%;
             scrollbar-width: none;
             &::-webkit-scrollbar { display: none; }
+            mask-image: linear-gradient(
+                to right,
+                transparent 0%,
+                black 8%,
+                black 92%,
+                transparent 100%
+            );
         }
     }