file_finder: Add skip_focus_for_active_in_search setting (#27624)

Closes #27073

Currently, when searching for a file with Ctrl+P, and the first file
found is the active one, file_finder skips focus to the second file
automatically. This PR adds a setting to disable this and make the first
file always the focused one.

Default setting is still skipping the active file.

Release Notes: 

- Added the `skip_focus_for_active_in_search` setting for the file
finder, which allows turning off the default behavior of skipping focus
on the active file while searching in the file finder.

---------

Co-authored-by: Smit Barmase <heysmitbarmase@gmail.com>

crates/file_finder/src/file_finder_settings.rs

@@ -7,6 +7,7 @@ use settings::{Settings, SettingsSources};
 pub struct FileFinderSettings {
     pub file_icons: bool,
     pub modal_max_width: Option<FileFinderWidth>,
+    pub skip_focus_for_active_in_search: bool,
 }
 
 #[derive(Clone, Default, Serialize, Deserialize, JsonSchema, Debug)]
@@ -19,6 +20,10 @@ pub struct FileFinderSettingsContent {
     ///
     /// Default: small
     pub modal_max_width: Option<FileFinderWidth>,
+    /// Determines whether the file finder should skip focus for the active file in search results.
+    ///
+    /// Default: true
+    pub skip_focus_for_active_in_search: Option<bool>,
 }
 
 impl Settings for FileFinderSettings {