Simulate helix line wrapping (#32763)

In helix the `f`, `F`, `t`, `T`, left and right motions wrap lines. I
added that by default.

Release Notes:

- vim: The `use_multiline_find` setting is replaced by binding to the
correct action in the keymap:
    ```
"f": ["vim::PushFindForward", { "before": false, "multiline": true }],
"t": ["vim::PushFindForward", { "before": true, "multiline": true }],
"shift-f": ["vim::PushFindBackward", { "after": false, "multiline": true
}],
"shift-t": ["vim::PushFindBackward", { "after": true, "multiline": true
}],
    ```
- helix: `f`/`t`/`shift-f`/`shift-t`/`h`/`l`/`left`/`right` are now
multiline by default (like helix)

crates/vim/src/state.rs

@@ -86,9 +86,11 @@ pub enum Operator {
     },
     FindForward {
         before: bool,
+        multiline: bool,
     },
     FindBackward {
         after: bool,
+        multiline: bool,
     },
     Sneak {
         first_char: Option<char>,
@@ -994,12 +996,12 @@ impl Operator {
             Operator::Replace => "r",
             Operator::Digraph { .. } => "^K",
             Operator::Literal { .. } => "^V",
-            Operator::FindForward { before: false } => "f",
-            Operator::FindForward { before: true } => "t",
+            Operator::FindForward { before: false, .. } => "f",
+            Operator::FindForward { before: true, .. } => "t",
             Operator::Sneak { .. } => "s",
             Operator::SneakBackward { .. } => "S",
-            Operator::FindBackward { after: false } => "F",
-            Operator::FindBackward { after: true } => "T",
+            Operator::FindBackward { after: false, .. } => "F",
+            Operator::FindBackward { after: true, .. } => "T",
             Operator::AddSurrounds { .. } => "ys",
             Operator::ChangeSurrounds { .. } => "cs",
             Operator::DeleteSurrounds => "ds",