Revert "file_finder: Remove common segments of long paths in search results (#25049)" (#25163)

This reverts commit 9ef0501853 due to a
panic.

```
{
  "thread": "main",
  "payload": "9 is not a valid char boundary in path \"crates/…/LiveKitBridge/\"",
  "location_data": {
    "file": "crates/file_finder/src/file_finder.rs",
    "line": 646
  }
}
```

Release Notes:

- N/A

crates/extension_host/src/extension_host.rs

@@ -218,6 +218,7 @@ impl ExtensionStore {
         cx.global::<GlobalExtensionStore>().0.clone()
     }
 
+    #[allow(clippy::too_many_arguments)]
     pub fn new(
         extensions_dir: PathBuf,
         build_dir: Option<PathBuf>,