Support Typescript 5

Environment
Provide version numbers for the following components (information can be retrieved by running tns info in your project folder or by inspecting the package.json of the project):

• NativeScript-Angular: 16
• Angular: 16

Describe the bug
Using Angular 16 which uses Typescript 5 and updated TSLib renders custom activities unusable and does not allow the app to start. Refer to this chat

https://discord.com/channels/603595811204366337/606457628729671691/1108803693844901968

System.err: An uncaught Exception occurred on "main" thread.
  System.err: Unable to create application com.tns.NativeScriptApplication: com.tns.NativeScriptException: Error calling module function
  System.err: Error: com.tns.system.classes.loading.LookedUpClassNotFound: Class "com.companymfg.activity" not found.
  System.err: File: (file: src\webpack:\inventory\webpack\bootstrap:27:0)
  System.err:
  System.err: StackTrace:
  System.err: (/data/data/com.companymfg.inventory/files/internal/ts_helpers.js:154:26)
  System.err:   at __esDecorate(file: src\webpack:\inventory\node_modules\tslib\tslib.es6.js:77:0)
  System.err:   at (file:///data/data/com.companymfg.inventory/files/app/bundle.js:741:9)
  System.err:   at (file:///data/data/com.companymfg.inventory/files/app/bundle.js:744:7)
  System.err:   at ./src/activity.android.ts(file:///data/data/com.companymfg.inventory/files/app/bundle.js:746:2)
  System.err:   at __webpack_require__(file: src\webpack:\inventory\webpack\bootstrap:24:0)
  System.err:   at __webpack_exec__(file:///data/data/com.companymfg.inventory/files/app/bundle.js:71277:39)
  System.err:   at (file:///data/data/com.companymfg.inventory/files/app/bundle.js:71278:224)
  System.err:   at __webpack_require__.X(file: src\webpack:\inventory\webpack\runtime\startup entrypoint:6:0)
  System.err:   at (file:///data/data/com.companymfg.inventory/files/app/bundle.js:71278:47)
  System.err:   at (file:///data/data/com.companymfg.inventory/files/app/bundle.js:71283:3)
  System.err:   at require(:1:266)

To Reproduce

Update Typescript to 5, TSLib 2.5, Angular 16. Use custom activity as stated in Nativescript Docs

Expected behavior
App to run normally

Sample project

Additional context

运行 tns info 并检查项目的 package.json，以确认 Angular 16、TypeScript 5 和 TSLib 2.5 版本。按照 NativeScript 文档中的说明使用自定义 activity 重现该故障；完成标准是应用正常启动，并且可以使用自定义 activity，而不会出现所报告的 class-not-found 错误。