Fix various linter errors

src/services.js

@@ -2017,6 +2017,17 @@ const ADDONS = {
     }
 };
 
+async function importAppDatabase(app, addon) {
+    assert.strictEqual(typeof app, 'object');
+    assert.strictEqual(typeof addon, 'string');
+
+    if (!(addon in ADDONS)) throw new BoxError(BoxError.NOT_FOUND, `No such addon: ${addon}`);
+
+    await ADDONS[addon].setup(app, app.manifest.addons[addon]);
+    await ADDONS[addon].clear(app, app.manifest.addons[addon]); // clear in case we crashed in a restore
+    await ADDONS[addon].restore(app, app.manifest.addons[addon]);
+}
+
 async function setupAddons(app, addons) {
     assert.strictEqual(typeof app, 'object');
     assert(!addons || typeof addons === 'object');