vim: Fix deletion with sentence-motion (#22289)

Fixes #22151.

Turns out Vim also has some weird behavior with sentence deletion in
case it's on the first character of a line.

Release Notes:

- vim: Fixed deleting sentence-wise (i.e. `d(` and `d)`), which would
previously delete the whole line instead of just a sentence.

crates/vim/src/motion.rs

@@ -585,8 +585,6 @@ impl Motion {
             | NextLineStart
             | PreviousLineStart
             | StartOfLineDownward
-            | SentenceBackward
-            | SentenceForward
             | StartOfParagraph
             | EndOfParagraph
             | WindowTop
@@ -611,6 +609,8 @@ impl Motion {
             | Left
             | Backspace
             | Right
+            | SentenceBackward
+            | SentenceForward
             | Space
             | StartOfLine { .. }
             | EndOfLineDownward