arch: move web folder into api & move api to top level

frontend/src/shared/hooks/onEscapeKeyDown.ts

@@ -0,0 +1,19 @@
+import { useEffect } from 'react';
+import KeyCodes from 'shared/constants/keyCodes';
+
+const useOnEscapeKeyDown = (isListening: boolean, onEscapeKeyDown: () => void) => {
+  useEffect(() => {
+    const handleKeyDown = (event: any) => {
+      if (event.keyCode === KeyCodes.ESCAPE) {
+        onEscapeKeyDown();
+      }
+    };
+    if (isListening) {
+      document.addEventListener('keydown', handleKeyDown);
+    }
+    return () => {
+      document.removeEventListener('keydown', handleKeyDown);
+    };
+  }, [isListening, onEscapeKeyDown]);
+};
+export default useOnEscapeKeyDown;