Overflow palette swatches

frontend/src/App.svelte

@@ -301,10 +301,9 @@
     grid-template-rows: minmax(0, 1fr);
   }
   .left {
-    display: flex;
-    flex-direction: column;
-    align-items: stretch;
-    justify-content: space-between;
+    display: grid;
+    grid-template-rows: minmax(0, 1fr) auto;
+    overflow: hidden;
   }
   .toolbar {
     display: flex;

frontend/src/sections/Palette.svelte

@@ -142,6 +142,7 @@
     background-color: var(--cds-background-selected);
     text-align: left;
     user-select: none;
+    overflow: auto;
   }
   .entry {
     position: relative;