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/change.rs

@@ -18,6 +18,7 @@ impl Vim {
         &mut self,
         motion: Motion,
         times: Option<usize>,
+        forced_motion: bool,
         window: &mut Window,
         cx: &mut Context<Self>,
     ) {
@@ -59,6 +60,7 @@ impl Vim {
                                     selection,
                                     times,
                                     &text_layout_details,
+                                    forced_motion,
                                 );
                                 if let Motion::CurrentLine = motion {
                                     let mut start_offset =
@@ -181,7 +183,7 @@ fn expand_changed_word_selection(
         } else {
             Motion::NextWordStart { ignore_punctuation }
         };
-        motion.expand_selection(map, selection, times, text_layout_details)
+        motion.expand_selection(map, selection, times, text_layout_details, false)
     }
 }