vim: Add some forced motion support (#27991)

Closes https://github.com/zed-industries/zed/issues/20971

Added `v` input to yank and delete to override default motion. The
global vim state tracking if the forced motion flag was passed handled
the same way that the count is. [The main chunk of code maps the motion
kind from the default to the overridden
kind](https://github.com/zed-industries/zed/pull/27991/files#diff-2dca6b7d1673c912d14e4edc74e415abbe3a4e6d6b37e0e2006d30828bf4bb9cR1249-R1254).
To handle the case of deleting a single character (dv0) at the start of
a row I had to modify the control flow
[here](https://github.com/zed-industries/zed/pull/27991/files#diff-2dca6b7d1673c912d14e4edc74e415abbe3a4e6d6b37e0e2006d30828bf4bb9cR1240-R1244).
Then to handle an exclusive delete till the end of the row (dv$) I
[saturated the endpoint with a left
bias](https://github.com/zed-industries/zed/pull/27991/files#diff-2dca6b7d1673c912d14e4edc74e415abbe3a4e6d6b37e0e2006d30828bf4bb9cR1281-R1286).

Test case: dv0


https://github.com/user-attachments/assets/613cf9fb-9732-425c-9179-025f3e107584

Test case: yvjp


https://github.com/user-attachments/assets/550b7c77-1eb8-41c3-894b-117eb50b7a5d

Release Notes:

- Added some forced motion support for delete and yank

crates/vim/src/normal/substitute.rs

@@ -13,6 +13,7 @@ pub(crate) fn register(editor: &mut Editor, cx: &mut Context<Vim>) {
     Vim::action(editor, cx, |vim, _: &Substitute, window, cx| {
         vim.start_recording(cx);
         let count = Vim::take_count(cx);
+        Vim::take_forced_motion(cx);
         vim.substitute(count, vim.mode == Mode::VisualLine, window, cx);
     });
 
@@ -22,6 +23,7 @@ pub(crate) fn register(editor: &mut Editor, cx: &mut Context<Vim>) {
             vim.switch_mode(Mode::VisualLine, false, window, cx)
         }
         let count = Vim::take_count(cx);
+        Vim::take_forced_motion(cx);
         vim.substitute(count, true, window, cx)
     });
 }
@@ -47,6 +49,7 @@ impl Vim {
                                 selection,
                                 count,
                                 &text_layout_details,
+                                false,
                             );
                         }
                         if line_mode {
@@ -60,6 +63,7 @@ impl Vim {
                                 selection,
                                 None,
                                 &text_layout_details,
+                                false,
                             );
                             if let Some((point, _)) = (Motion::FirstNonWhitespace {
                                 display_lines: false,