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/admin/update-meta.ts

@@ -136,7 +136,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> {
 			if (Array.isArray(ps.sensitiveWords)) {
 				set.sensitiveWords = ps.sensitiveWords.filter(Boolean);
 			}
-		
+
 			if (ps.themeColor !== undefined) {
 				set.themeColor = ps.themeColor;
 			}