This commit upgrades TypeScript to the latest version 5.3 and introduces
`verbatimModuleSyntax` in line with the official Vue guide
recommendatinos (vuejs/docs#2592).
By enforcing `import type` for type-only imports, this commit improves
code clarity and supports tooling optimization, ensuring imports are
only bundled when necessary for runtime.
Changes:
- Bump TypeScript to 5.3.3 across the project.
- Adjust import statements to utilize `import type` where applicable,
promoting cleaner and more efficient code.
This commit improves the dependency injection mechanism by introducing a
custom `injectKey` function.
Key improvements are:
- Enforced type consistency during dependency registration and
instantiation.
- Simplified injection process, abstracting away the complexity with a
uniform API, regardless of the dependency's lifetime.
- Eliminated the possibility of `undefined` returns during dependency
injection, promoting fail-fast behavior.
- Removed the necessity for type casting to `symbol` for injection keys
in unit tests by using existing types.
- Consalidated imports, combining keys and injection functions in one
`import` statement.
