refactor: make ConfigBase abstract

src/core/helper/config.ts

@@ -11,7 +11,5 @@ export interface NapCatConfig {
 
 // eslint-disable-next-line @typescript-eslint/no-unsafe-declaration-merging
 export class NapCatConfig extends ConfigBase<NapCatConfig> {
-    getConfigName() {
-        return 'napcat';
-    }
+    name = 'napcat';
 }