Integration work for rich text editor 2.3.1 (#11172)

* accompanying changes

* switch to set innerHTML

* bump rte to 2.3.1

* update types for dynamic import

* add comment

* Add comments to dynamic imports

* update comments

package.json

@@ -61,7 +61,7 @@
     "dependencies": {
         "@babel/runtime": "^7.12.5",
         "@matrix-org/analytics-events": "^0.5.0",
-        "@matrix-org/matrix-wysiwyg": "^2.3.0",
+        "@matrix-org/matrix-wysiwyg": "^2.3.1",
         "@matrix-org/react-sdk-module-api": "^1.0.0",
         "@sentry/browser": "^7.0.0",
         "@sentry/tracing": "^7.0.0",