Rework the way project panel auto reveals entries

* gitignored entries are never auto revealed
* `project_panel::auto_reveal_entries = true` settings entry was added,
setting it to `false` will disable the auto reveal
* `pane::RevealInProjectPanel` action was added that activates the project panel and reveals the entry it got triggered on (including the gitignored ones)

crates/project_panel/src/project_panel_settings.rs

@@ -18,6 +18,7 @@ pub struct ProjectPanelSettings {
     pub folder_icons: bool,
     pub git_status: bool,
     pub indent_size: f32,
+    pub auto_reveal_entries: bool,
 }
 
 #[derive(Clone, Default, Serialize, Deserialize, JsonSchema, Debug)]
@@ -28,6 +29,7 @@ pub struct ProjectPanelSettingsContent {
     pub folder_icons: Option<bool>,
     pub git_status: Option<bool>,
     pub indent_size: Option<f32>,
+    pub auto_reveal_entries: Option<bool>,
 }
 
 impl Setting for ProjectPanelSettings {