Previously, we were always mutating selections when `sync_editor_options`
was called. This seems to happen every time vim is enabled/disabled, but also
when vim is disabled and editors are simply focused/blurred.
This commit changes it so that we only manipulate selections when vim-mode is active.
Also, allow arbitrary types to be used as Actions via the impl_actions macro
Co-authored-by: Nathan Sobo <nathan@zed.dev>
Co-authored-by: Keith Simmons <keith@zed.dev>
Add jump to start and end of the document
Move vim tests to relevant vim files
Rename VimTestAppContext to VimTestContext for brevity
Improve VimTestContext assertions to pretty print locations when selection position assertion panics
Also: Make some structural adjustments to remove the need for defer. Instead of accessing the global in associated VimState functions, have a single method that allows us to call update instance methods.
