feat: Remove UNC prefix in paths returned to the frontend (#1168)

* feat: Remove UNC prefix in paths returned to the frontend

* that one doesn't count

* map instead of mut

* revert accidental ipc::response change

* move dunce to workspace root

Cargo.lock

@@ -6227,6 +6227,7 @@ dependencies = [
 name = "tauri-plugin-dialog"
 version = "2.0.0-beta.4"
 dependencies = [
+ "dunce",
  "log",
  "raw-window-handle 0.6.0",
  "rfd",
@@ -6464,6 +6465,7 @@ dependencies = [
 name = "tauri-plugin-store"
 version = "2.0.0-beta.4"
 dependencies = [
+ "dunce",
  "log",
  "serde",
  "serde_json",