Before this change up and down were in display co-ordinates, after this
change they are in fold coordinates (which matches the vim behaviour).
To make this work without causing usabliity problems, a bunch of extra
keyboard shortcuts now work:
- vim: `z {o,c}` to open,close a fold
- vim: `z f` to fold current visual selection
- vim: `g {j,k,up,down}` to move up/down a display line
- vim: `g {0,^,$,home,end}` to get to start/end of a display line
Fixes: zed-industries/community#1562
### Todo
* [x] Snapshot channel buffers when everyone closes the buffer
* [x] Ensure that users who are in both a project and a channel note
have the same color in both places
* [x] Allow following project collaborators into channel notes
* [x] Expose notes for the current channel under "Current Call" section
of the collaboration panel
* [x] Offline state for the channel notes view
* [x] Make the channel context menu accessible to all members (to expose
the notes)
* [x] Wire in view and Item method overrides
Release Notes:
- N/A
- vim: support P for paste before
- vim: support P in visual mode for paste without overriding clipboard
- vim: fix position when using `p` on text copied outside zed
- vim: fix indentation when using `p` on text copied from zed
This isn't quite an exact emulation, as instead of using one selection
that is magically in "column mode", we emulate it with a bunch of zed
multi-selections (one per line).
I think this is better, as it requires fewer changes to the codebase,
and lets you see the impact of any changes immediately on all lines.
Fixes: zed-industries/community#984
These primarily happen when first entering visual mode, but can also
be created with objects like `vi{`.
Along the way fix the way ranges like `vi{` are selected to be more
similar to nvim.
