Add `zs` and `ze` mappings to roadmap

Is your feature request related to a problem? Please describe.
In vim, I often use g$ without word-wrap enabled to go to the end of the screen and then use zs or ze to send the current cursor position to the beginning or end of the line, respectively.

Describe the solution you'd like
zs will scroll the window (horizontally) so that the current cursor position is moved to the far left/beginning of the screen. ze does the opposite (sends the current cursor position to the end of the screen).

Describe alternatives you've considered
I'm not aware of any alternatives.

Additional context
In vim, if my cursor is at the end of the line:

I can then hit zs and the screen will look like the following:

If the cursor is instead in the following position:

I can hit ze and the screen will look like the following:

Implementing these (or at least adding them to the roadmap) would make this extension more consistent with vim.

Start by locating the TypeScript key-mapping entry point for the VS Code Vim extension and review how existing Vim window-scrolling mappings are represented. Confirm the intended horizontal behavior for zs and ze, then verify the mappings manually in an unwrapped long line; the issue does not name a file or test to run.