Fix broken links to cpp and rust docs (#7263)

docs/astro/src/content/docs/guide/language/coding/file.mdx

@@ -338,9 +338,9 @@ The path to each library, as file or directory, must be defined separately at co
 Use one of the following methods to help the Slint compiler resolve libraries to the correct
 path on disk:
 
-* When using Rust and `build.rs`, call [`with_library_paths`](slint-build-rust:struct.CompilerConfiguration#method.with_library_paths)
+* When using Rust and `build.rs`, call [`with_library_paths`](https://slint.dev/docs/rust/slint_build/struct.CompilerConfiguration#method.with_library_paths)
   to provide a mapping from library name to path.
-* When using C++, use `LIBRARY_PATHS` with [`slint_target_sources`](slint-cpp:cmake_reference#slint-target-sources).
+* When using C++, use `LIBRARY_PATHS` with [`slint_target_sources`](https://slint.dev/docs/cpp/cmake_reference#slint-target-sources).
 * When invoking the `slint-viewer` from the command line, pass `-Lmylibrary=/path/to/my/library` for each component
   library.
 * When using the VS Code extension, configure the Slint extension's library path