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/toolchain_selector/src/toolchain_selector.rs

@@ -85,6 +85,7 @@ impl ToolchainSelector {
         Some(())
     }
 
+    #[allow(clippy::too_many_arguments)]
     fn new(
         workspace: WeakEntity<Workspace>,
         project: Entity<Project>,
@@ -142,6 +143,7 @@ pub struct ToolchainSelectorDelegate {
 }
 
 impl ToolchainSelectorDelegate {
+    #[allow(clippy::too_many_arguments)]
     fn new(
         active_toolchain: Option<Toolchain>,
         toolchain_selector: WeakEntity<ToolchainSelector>,