fix: ensure search paths are indexed (#896)

The file search extension relies on the OS's desktop search to work, and it
is possible that the desktop search indexer may not index the search paths
we specify.

This commit adds a hook that signals to the indexer and lets it index
the paths we need. This hook will be invoked when:

* initialing the extension
* enabling the extension
* upon every configuration change

to make our best effort to fix the issue.

.github/workflows/rust_code_check.yml

@@ -32,6 +32,14 @@ jobs:
         sudo apt-get update
         sudo apt-get install -y libwebkit2gtk-4.1-dev libappindicator3-dev librsvg2-dev patchelf xdg-utils libtracker-sparql-3.0-dev
 
+    # On Windows, we need to generate bindings for 'searchapi.h' using bindgen.
+    # And bindgen relies on 'libclang'
+    # https://rust-lang.github.io/rust-bindgen/requirements.html#windows
+    - name: Install dependencies (Windows only)
+      if: startsWith(matrix.platform, 'windows-latest')
+      shell: bash
+      run: winget install LLVM.LLVM --silent --accept-package-agreements --accept-source-agreements
+
     - name: Add pizza engine as a dependency
       working-directory: src-tauri
       shell: bash