Allow ignoring soft wraps when moving to line ends (#11153)

Release Notes:

- Fixed #10888

This patch addresses behavior of
`Editor::move_to_{beginning|end}_of_line`. It adds a setting,
`stop_at_soft_wraps` when defining a keymap for the
`editor::MoveToBeginningOfLine` and `editor::MoveToEndOfLine` actions.
When `true`, it causes movement to the either end of the line (via, for
example Home or End), to go to the logical end, as opposed to the
nearest soft wrap point in the respective direction.

---------

Co-authored-by: Kirill Bulatov <kirill@zed.dev>

crates/util/src/serde.rs

@@ -0,0 +1,3 @@
+pub const fn default_true() -> bool {
+    true
+}

crates/util/src/util.rs

@@ -5,6 +5,7 @@ mod git_author;
 pub mod github;
 pub mod http;
 pub mod paths;
+pub mod serde;
 #[cfg(any(test, feature = "test-support"))]
 pub mod test;