Add .gitignore to exclude virtual environment directory

.gitignore

@@ -1,2 +1,28 @@
+venv
+temp_thumbnail.png
+video_classifications.csv
+
+# build output
+dist/
+# generated types
+.astro/
+
+# dependencies
 node_modules/
+
+# logs
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+
+
+# environment variables
 .env
+.env.production
+
+# macOS-specific files
+.DS_Store
+
+# jetbrains setting folder
+.idea/