Add `zs` and `ze` mappings to roadmap

[ktr]

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.

[J-Fields]

scroll the window (horizontally)

This currently isn't possible with VSCode's API