vim: Fix cgn backwards movement when there is no matches (#10237)

Release Notes:

- Fixed `cgn` backwards movement problem in #9982

There are two issues:

- When there are no more matches, the next repetition still moves the
cursor to the left. After that, the recording is cleared. For this I
simply move the cursor to the right, but it doesn't work when the cursor
is at the end of the line.
- If `cgn` is used when there are no matches, it cleans the previous
recorded actions. Maybe there should be a way to revert the recording.
This also happens when using `c` and `esc`

---------

Co-authored-by: Conrad Irwin <conrad.irwin@gmail.com>

crates/vim/src/vim.rs

@@ -341,6 +341,10 @@ impl Vim {
         }
     }
 
+    pub fn stop_replaying(&mut self) {
+        self.workspace_state.replaying = false;
+    }
+
     /// When finishing an action that modifies the buffer, stop recording.
     /// as you usually call this within a keystroke handler we also ensure that
     /// the current action is recorded.
@@ -499,6 +503,7 @@ impl Vim {
         self.sync_vim_settings(cx);
         popped_operator
     }
+
     fn clear_operator(&mut self, cx: &mut WindowContext) {
         self.take_count(cx);
         self.update_state(|state| state.operator_stack.clear());