In a previous Pull Request, a new field was added to `editor::Editor`,
namely `cursor_offset_on_selection`, in order to control whether the
cursor representing the head of a selection should be positioned in the
last selected character, as we have on Vim mode, or after, like we have
when Vim mode is disabled.
This field would then be set by the `vim` crate, depending on the
current vim mode. However, it was noted that
`vim_mode_setting::VimModeSetting` already exsits and allows other
crates to determine whether Vim mode is enabled or not. Since we're
already checking `!range.is_empty()` in
`editor::element::SelectionLayout::new` we can then rely on simply
determining whether Vim mode is enabled to decide whether tho shift the
cursor one position to the left when making a selection.
As such, this commit removes the `cursor_offset_on_selection` field, as
well as any related methods in favor of a new `Editor.vim_mode_enabled`
method, which can be used to achieve the same behavior.
Relates to #42837
Release Notes:
- N/A
0410b2340c