Update @types/vscode and StatusBarItem implementation

Author: andyleejordan

package-lock.json

@@ -68,7 +68,7 @@
     "@types/semver": "~7.3.4",
     "@types/sinon": "~9.0.10",
     "@types/uuid": "~8.3.0",
-    "@types/vscode": "~1.52.0",
+    "@types/vscode": "~1.53.0",
     "mocha": "~8.2.1",
     "mocha-junit-reporter": "~2.0.0",
     "mocha-multi-reporters": "~1.5.1",

package.json

@@ -59,6 +59,14 @@ class AnimatedStatusBarItem implements StatusBarItem {
         this.statusBarItem.color = value;
     }
 
+    public get backgroundColor(): string | ThemeColor {
+        return this.statusBarItem.backgroundColor;
+    }
+
+    public set backgroundColor(value: string | ThemeColor) {
+        this.statusBarItem.backgroundColor = value;
+    }
+
     public get command(): string | Command {
         return this.statusBarItem.command;
     }