Part of #9747

Fixes #9800

Terminal.element is focused when text is focused in the terminal, the cursor
should be styled as such.

Part of #9704

When ctrl+m is pressed (only use default keybinding for now), tab will not be
passed to the pty and instead will propogate up and shift focus.

Part of #6731

Currently using the xterm.js PR branch

Fixes #7045

Fixes #7541

Fixes #8553

Uses editor.cursorBlinking === 'blink'

Fixes #8085
Fixes #7616

Focus previous/next are temporary until tabs are visualized in the UI

Fixes #7445

inline-block causes some strange looking selections

Fixes #7352

Fixes #75

Fixes #6505

Fixes #6468

Fixes #6467

The foreground color was not set so the editor's color was used

Part of #143