docs: alwaysStrict does not affect the build result anymore (#21199)

Author: sapphi-red

guide/features.md

@@ -123,7 +123,6 @@ Note that this feature has a performance cost and is [discouraged by the TypeScr
 - [`jsxFragmentFactory`](https://www.typescriptlang.org/tsconfig#jsxFragmentFactory)
 - [`jsxImportSource`](https://www.typescriptlang.org/tsconfig#jsxImportSource)
 - [`experimentalDecorators`](https://www.typescriptlang.org/tsconfig#experimentalDecorators)
-- [`alwaysStrict`](https://www.typescriptlang.org/tsconfig#alwaysStrict)
 
 ::: tip `skipLibCheck`
 Vite starter templates have `"skipLibCheck": "true"` by default to avoid typechecking dependencies, as they may choose to only support specific versions and configurations of TypeScript. You can learn more at [vuejs/vue-cli#5688](https://github.com/vuejs/vue-cli/pull/5688).