windows: Improve file_finder to support match with unix style path (#12357)

Release Notes:

- Improved file_finder to support match with Unix style path.


Sometimes we may get the Unix style path string, for example the result
of `git status`:

```bash
$ git status
On branch improve-file-finder-match-unix-paths
Changes not staged for commit:
  (use "git add <file>..." to update what will be committed)
  (use "git restore <file>..." to discard changes in working directory)
        modified:   crates/file_finder/src/file_finder.rs
```

For example, from GitHub page:

<img width="760" alt="image"
src="https://github.com/zed-industries/zed/assets/5518/c6fe8d8a-839e-4eef-a162-43b1dde09593">

If we copy that path to file_finder, it will not match any files on
Windows.

## Before

<img width="699" alt="屏幕截图 2024-05-28 001037"
src="https://github.com/zed-industries/zed/assets/5518/2d2d729e-7d27-421b-9a38-cfe4e53cc033">


## After

Use Unix style path:

<img width="689" alt="屏幕截图 2024-05-28 001150"
src="https://github.com/zed-industries/zed/assets/5518/e82dc8d6-bd6c-4b78-bd91-5b5210da73c4">

Use Windows style path:

<img width="629" alt="屏幕截图 2024-05-28 001302"
src="https://github.com/zed-industries/zed/assets/5518/4892019e-b2f4-41aa-bbf7-2f5f8af7aafa">

crates/zed/src/zed/open_listener.rs

@@ -55,7 +55,7 @@ impl OpenRequest {
     fn parse_file_path(&mut self, file: &str) {
         if let Some(decoded) = urlencoding::decode(file).log_err() {
             if let Some(path_buf) =
-                PathLikeWithPosition::parse_str(&decoded, |s| PathBuf::try_from(s)).log_err()
+                PathLikeWithPosition::parse_str(&decoded, |_, s| PathBuf::try_from(s)).log_err()
             {
                 self.open_paths.push(path_buf)
             }
@@ -295,7 +295,7 @@ pub async fn handle_cli_connection(
                         .map(|path_with_position_string| {
                             PathLikeWithPosition::parse_str(
                                 &path_with_position_string,
-                                |path_str| {
+                                |_, path_str| {
                                     Ok::<_, std::convert::Infallible>(
                                         Path::new(path_str).to_path_buf(),
                                     )