cleanup: trim trailing whitespace (#11136)

* cleanup: trim trailing whitespace

* update(`.editorconfig`)

---------

Co-authored-by: syuilo <Syuilotan@yahoo.co.jp>

packages/backend/src/server/api/endpoints/i/2fa/update-key.ts

@@ -61,7 +61,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> {
 			if (key.userId !== me.id) {
 				throw new ApiError(meta.errors.accessDenied);
 			}
-	
+
 			await this.userSecurityKeysRepository.update(key.id, {
 				name: ps.name,
 			});