This PR adds an `editor: convert to sentence case` action.
I frequently find myself copying branch names and then removing the
hyphens and ensuring the first letter is capitalized, and then using the
result text for the commit message.
For example:
<img width="927" height="482" alt="image"
src="https://github.com/user-attachments/assets/adf14a37-a92e-44df-8c0e-267b5c7677fb"
/>
You can achieve this with a combination of other text manipulation
commands, but this action makes it even easier.
Also, moved `toggle_case` down into the area where all other commands
internally using `manipulate_text` are located.
Release Notes:
- Added `editor: convert to sentence case`
913b9296d7