refactor(dash): [PKG-DASH-04] migrate strict TypeScript and compatible declarations

packages/artplayer-plugin-dash-control/tsconfig.json

@@ -0,0 +1,5 @@
+{
+  "extends": "../../tsconfig.base.json",
+  "compilerOptions": { "allowJs": false },
+  "include": ["src/**/*.ts", "types/**/*.d.ts", "types/**/*.d.mts", "types/**/*.d.cts", "../../types/assets.d.ts"]
+}