Add simple support for wrapscan (#13497)

For: #13417 

This is a simple version, I'm not sure if we just need to limit this
feature to vim mode, or maybe in normal editor mode, which involves
other logic like the location of the setting

Release Notes:

- N/A

---------

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

crates/editor/src/editor_settings.rs

@@ -25,6 +25,7 @@ pub struct EditorSettings {
     pub expand_excerpt_lines: u32,
     #[serde(default)]
     pub double_click_in_multibuffer: DoubleClickInMultibuffer,
+    pub search_wrap: bool,
     #[serde(default)]
     pub jupyter: Jupyter,
 }
@@ -228,6 +229,10 @@ pub struct EditorSettingsContent {
     ///
     /// Default: select
     pub double_click_in_multibuffer: Option<DoubleClickInMultibuffer>,
+    /// Whether the editor search results will loop
+    ///
+    /// Default: true
+    pub search_wrap: Option<bool>,
 
     /// Jupyter REPL settings.
     pub jupyter: Option<Jupyter>,