correctly update sidebar on settings change; reduce default historyCount

Author: telamonian

schema/plugin.json

@@ -9,7 +9,7 @@
       "type": "integer",
       "title": "History count",
       "description": "Number of (most recent) commits shown in the history log",
-      "default": 100
+      "default": 25
     }
   }
 }

src/components/GitWidget.tsx

@@ -94,7 +94,6 @@ export class GitWidget extends Widget {
 
     void registry.load(key).then(settings => {
       this._settings = settings;
-      // this._settings.changed.connect(this._loadSettings, this);
 
       const element = (
         <GitPanel
@@ -105,6 +104,8 @@ export class GitWidget extends Widget {
         />
       );
       this.component = ReactDOM.render(element, this.node);
+
+      this._settings.changed.connect(this.component.refresh, this);
       this.component.refresh();
     });
   }