Closes#4495
Release Notes:
- vim: add cursor shape settings for each vim mode
---
Add cursor shape settings for each vim mode to enable users to specify
them.
Example of `settings.json`:
```json
{
"vim_mode": true,
"vim": {
"cursor_shape": {
"normal": "hollow",
"insert": "bar",
"replace": "block",
"visual": "underline"
}
}
}
```
After this change is applied,
- The cursor shape specified by the user for each mode is used.
- In insert mode, the `vim > cursor_shape > insert` setting takes
precedence over the primary `cursor_shape` setting.
- If `vim > cursor_shape > insert` is not set, the primary
`cursor_shape` will be used in insert mode.
- The cursor shape will remain unchanged before and after this update
when the user does not set the `vim > cursor_shape` setting.
Video:
[screen-record.webm](https://github.com/user-attachments/assets/b87461a1-6b3a-4a77-a607-a340f106def5)
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