(chore) remove outdated code (#1765)

* optimize room typing members hook

* remove unused code - WIP

* remove old code from initMatrix

* remove twemojify function

* remove old sanitize util

* delete old markdown util

* delete Math atom component

* uninstall unused dependencies

* remove old notification system

* decrypt message in inbox notification center and fix refresh in background

* improve notification

---------

Co-authored-by: Krishan <33421343+kfiven@users.noreply.github.com>

src/app/hooks/usePreviousValue.ts

@@ -0,0 +1,11 @@
+import { useEffect, useRef } from 'react';
+
+export const usePreviousValue = <T>(currentValue: T, initialValue: T) => {
+  const valueRef = useRef(initialValue);
+
+  useEffect(() => {
+    valueRef.current = currentValue;
+  }, [currentValue]);
+
+  return valueRef.current;
+};