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/components/tools/ToolPanel.tsx

@@ -72,17 +72,15 @@ export default function ToolPanel() {
 
         {searchQuery.trim().length > 0 ? (
           // Searching view (replaces both picker and content)
-          <div className="flex-1 flex flex-col">
-            <div className="flex-1 min-h-0">
+          <div className="flex-1 flex flex-col overflow-y-auto">
               <SearchResults
                 filteredTools={filteredTools}
                 onSelect={handleToolSelect}
               />
-            </div>
           </div>
         ) : leftPanelView === 'toolPicker' ? (
           // Tool Picker View
-          <div className="flex-1 flex flex-col">
+          <div className="flex-1 flex flex-col overflow-auto">
             <ToolPicker
               selectedToolKey={selectedToolKey}
               onSelect={handleToolSelect}