Allow manual context management (#376)

src/components/ChatInputControls.tsx

@@ -1,10 +1,16 @@
+import { ContextFilesPicker } from "./ContextFilesPicker";
 import { ModelPicker } from "./ModelPicker";
 import { ProModeSelector } from "./ProModeSelector";
 
-export function ChatInputControls() {
+export function ChatInputControls({
+  showContextFilesPicker = false,
+}: {
+  showContextFilesPicker?: boolean;
+}) {
   return (
     <div className="pb-2 flex gap-2">
       <ModelPicker />
+      {showContextFilesPicker && <ContextFilesPicker />}
       <ProModeSelector />
     </div>
   );