Add Electron GUI and packaging scripts

packaging/build_appimage.sh

@@ -0,0 +1,30 @@
+#!/usr/bin/env bash
+set -e
+
+if [ ! -f dist/voxvera ]; then
+  echo "Run PyInstaller first" >&2
+  exit 1
+fi
+
+APPDIR=dist/AppDir
+mkdir -p "$APPDIR/usr/bin"
+cp dist/voxvera "$APPDIR/usr/bin/voxvera"
+chmod +x "$APPDIR/usr/bin/voxvera"
+
+cat > "$APPDIR/voxvera.desktop" <<EOD
+[Desktop Entry]
+Type=Application
+Name=VoxVera
+Exec=voxvera
+Icon=voxvera
+Categories=Utility;
+EOD
+
+touch "$APPDIR/voxvera.png"
+
+wget -q https://github.com/AppImage/AppImageKit/releases/latest/download/appimagetool-x86_64.AppImage -O appimagetool
+chmod +x appimagetool
+./appimagetool "$APPDIR" dist/VoxVera.AppImage
+rm appimagetool
+
+echo "AppImage created at dist/VoxVera.AppImage"