support matrix.to links (#1849)

* support room via server params and eventId

* change copy link to matrix.to links

* display matrix.to links in messages as pill and stop generating url previews for them

* improve editor mention to include viaServers and eventId

* fix mention custom attributes

* always try to open room in current space

* jump to latest remove target eventId from url

* add create direct search options to open/create dm with url

src/app/hooks/useSpoilerClickHandler.ts

@@ -0,0 +1,14 @@
+import { ReactEventHandler, useCallback } from 'react';
+
+export const useSpoilerClickHandler = (): ReactEventHandler<HTMLElement> => {
+  const handleClick: ReactEventHandler<HTMLElement> = useCallback((evt) => {
+    const target = evt.currentTarget;
+    if (target.getAttribute('aria-pressed') === 'true') {
+      evt.stopPropagation();
+      target.setAttribute('aria-pressed', 'false');
+      target.style.cursor = 'initial';
+    }
+  }, []);
+
+  return handleClick;
+};