Use @typescript-eslint/semi.

Signed-off-by: Panu Horsmalahti <phorsmalahti@mirantis.com>

src/renderer/components/+extensions/extensions.tsx

@@ -15,7 +15,7 @@ import { extensionManager } from "../../../extensions/extension-manager";
 
 @observer
 export class Extensions extends React.Component {
-  @observable search = ""
+  @observable search = "";
 
   @computed get extensions() {
     const searchText = this.search.toLowerCase();