Add ESLint config and update code style

Introduced a new eslint.config.js using neostandard and added related devDependencies. Updated codebase for consistent formatting, spacing, and function declarations. Minor refactoring and cleanup across multiple files to improve readability and maintain code style compliance.

packages/napcat-onebot/action/auto-register.ts

@@ -1,6 +1,6 @@
 import { OneBotAction } from './OneBotAction';
 export const AutoRegisterRouter: Array<new (...args: any[]) => OneBotAction<unknown, unknown>> = [];
 
-export function ActionHandler(target: new (...args: any[]) => OneBotAction<unknown, unknown>) {
-    AutoRegisterRouter.push(target);
+export function ActionHandler (target: new (...args: any[]) => OneBotAction<unknown, unknown>) {
+  AutoRegisterRouter.push(target);
 }