Add very simple search support to pages, togglable with "k"

resources/scripts/components/elements/InputSpinner.tsx

@@ -0,0 +1,22 @@
+import React from 'react';
+import Spinner from '@/components/elements/Spinner';
+import { CSSTransition } from 'react-transition-group';
+
+const InputSpinner = ({ visible, children }: { visible: boolean, children: React.ReactNode }) => (
+    <div className={'relative'}>
+        <CSSTransition
+            timeout={250}
+            in={visible}
+            unmountOnExit={true}
+            appear={true}
+            classNames={'fade'}
+        >
+            <div className={'absolute pin-r h-full flex items-center justify-end pr-3'}>
+                <Spinner size={'tiny'}/>
+            </div>
+        </CSSTransition>
+        {children}
+    </div>
+);
+
+export default InputSpinner;