enable and fix no-unused-vars and no-async-promise-executor (#17070)

* dev: set --no-bail for lint task

* lint: enable no-async-promise-executor lint and fix them

* lint: enable no-unused-vars with allowing _ prefix

* lint: fix semi

packages/backend/src/server/api/endpoints/ap/show.ts

@@ -215,7 +215,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 					type: 'Note',
 					object,
 				};
-			} catch (e) {
+			} catch (_) {
 				return null;
 			}
 		}