refactor: use AstroImageTools to optimize Markdown images

package.json

@@ -18,9 +18,14 @@
 		"@astrojs/tailwind": "^3.0.1",
 		"astro": "^2.4.0",
 		"astro-icon": "^0.8.0",
+		"astro-imagetools": "^0.8.1",
 		"autoprefixer": "^10.4.13",
 		"classnames": "^2.3.2",
+		"file-type": "^18.4.0",
+		"find-cache-dir": "^4.0.0",
+		"object-hash": "^3.0.0",
 		"postcss": "^8.4.21",
+		"potrace": "^2.1.8",
 		"preact": "^10.6.5",
 		"sharp": "^0.31.3",
 		"tailwindcss": "^3.0.24"