Android Editor Experience

[holtwick]

There are some issues that make the editing experience on Android with Google Keyboard in Chrome unusable:

• [x] 1. Selecting text in different lines often does not respond (problems leaving composition state?)
• [x] 2. Changing block level markup does not work when in composition mode (workaround idea: blur/force end composition mode, then apply)
• [x] 3. Placeholder not working https://github.com/scrumpy/tiptap/issues/229
• [x] 4. Checkbox tap events do not reach the plugin code (contentEditable=false related?) => F7 issue

Step 1: Try this fix https://github.com/ProseMirror/prosemirror/issues/829

Step 2: Figure out if TipTap adds some of the described behaviors or if it is all about ProseMirror or my own code. At least No 1 does not happen in pure ProseMirror. Or Framework7 could also be culprit! OMG what a mess.

[holtwick]

All fixed via TipTap and Prosemirror changes. Thanks!