Fix/keymap/vim ctrl w idle

[fraxx001]

Add new keymap for ctrl-w in normal mode.
type idle is not catched by Command dispatcher and therefore idles.

[marijnh]

Thanks!

[pmbauer]

Questions

Is there context on why <C-w> was explicitly disabled in normal mode? I'd work on a pull request to re-enable it (or submit a revert) but I want to understand the use case for the pull @marijnh @fraxx001.

1. Would it make sense to revert this change or would that break another use case?
2. If it would break another use case, would you accept a patch to over-ride entries in the default keymap for contexts it makes sense?

Context

Because <C-w> is explicitly disallowed in the default keymap, it is not possible to use window manipulation routines like split, vsplit, and pane navigation in a context that makes sense.

For example, I'm using vim mode in Obsidian with the obsidian-vimrc-support plugin, and would like to make the following work:

exmap focusRight obcommand editor:focus-right
nmap <C-w>l :focusRight

exmap focusLeft obcommand editor:focus-left
nmap <C-w>h :focusLeft

exmap focusTop obcommand editor:focus-top
nmap <C-w>k :focusTop

exmap focusBottom obcommand editor:focus-bottom
nmap <C-w>j :focusBottom

exmap splitVertical obcommand workspace:split-vertical
nmap <C-w>v :splitVertical

exmap splitHorizontal obcommand workspace:split-horizontal
nmap <C-w>s :splitHorizontal

I have an hilarious hack to patch the vim.js in Obsidian, that does let me use the <C-w> leader to create window splits and navigate windows, but would be happy to work on an upstream patch to make it more accessible.