add file browser component and widget

examples/file_browser_demo/build.sh

@@ -0,0 +1,17 @@
+#!/bin/bash
+
+echo "Building File Browser Demo with Trunk..."
+
+# Check if trunk is installed
+if ! command -v trunk &> /dev/null; then
+    echo "Trunk is not installed. Installing..."
+    cargo install trunk
+fi
+
+# Build for development
+echo "Building for development..."
+trunk build
+
+echo "Build complete! Files are in the 'dist' directory."
+echo "To serve locally, run: trunk serve"
+echo "To build for production, run: trunk build --release"