Basic footer structure and Cookie Consent (#4320)

* Added footer with blank links to be filled 
* Cookie consent to match V1 
* Made scrolling work on tool search results
* Made scrolling the same on tool search, tool picker and workbench 
* Cleaned up height variables, view height only used at workbench level 
<img width="1525" height="1270"
alt="{F3C1B15F-A4BE-4DF0-A5A8-92D2A3B14443}"
src="https://github.com/user-attachments/assets/0c23fe35-9973-45c0-85af-0002c5ff58d2"
/>
<img width="1511" height="1262"
alt="{4DDD51C0-4BC5-4E9F-A4F2-E5F49AF5F5FD}"
src="https://github.com/user-attachments/assets/2596d980-0312-4cd7-ad34-9fd3a8d1869e"
/>

---------

Co-authored-by: Connor Yoh <[email protected]>
Co-authored-by: James Brunton <[email protected]>

frontend/src/pages/HomePage.tsx

@@ -11,6 +11,7 @@ import Workbench from "../components/layout/Workbench";
 import QuickAccessBar from "../components/shared/QuickAccessBar";
 import RightRail from "../components/shared/RightRail";
 import FileManager from "../components/FileManager";
+import Footer from "../components/shared/Footer";
 
 
 export default function HomePage() {
@@ -38,17 +39,20 @@ export default function HomePage() {
   // Note: File selection limits are now handled directly by individual tools
 
   return (
-    <Group
-      align="flex-start"
-      gap={0}
-      className="min-h-screen w-screen overflow-hidden flex-nowrap flex"
-    >
-      <QuickAccessBar
-        ref={quickAccessRef} />
-      <ToolPanel />
-      <Workbench />
-      <RightRail />
-      <FileManager selectedTool={selectedTool as any /* FIX ME */} />
-    </Group>
+    <div className="h-screen overflow-hidden">
+      <Group
+        align="flex-start"
+        gap={0}
+        h="100%"
+        className="flex-nowrap flex"
+      >
+        <QuickAccessBar
+          ref={quickAccessRef} />
+        <ToolPanel />
+        <Workbench />
+        <RightRail />
+        <FileManager selectedTool={selectedTool as any /* FIX ME */} />
+      </Group>
+    </div>
   );
-}
+}