(chore) remove outdated code (#1765)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/util/colorMXID.js

@@ -1,6 +1,6 @@
 // https://github.com/cloudrac3r/cadencegq/blob/master/pug/mxid.pug
 
-export function hashCode(str) {
+function hashCode(str) {
   let hash = 0;
   let i;
   let chr;