Remove bottom spacing from palette container

- Changed .red-ui-palette-scroll bottom from 25px to 0
- Palette now extends to full height of the left sidebar
- Right sidebar footer already hidden with display: none

Co-authored-by: Dimitrie Hoekstra <[email protected]>

Author: github-actions[bot]

packages/node_modules/@node-red/editor-client/src/sass/palette.scss

@@ -69,7 +69,7 @@
     position: absolute;
     top: 35px;
     right: 0;
-    bottom: 25px;
+    bottom: 0;
     left:0;
     padding: 0;
     overflow-y: auto;