refactor: replace github-slugger with lodash.kebabcase (#357)

Previously, `github-slugger` omitted emojis when generating slugs, transforming tags like "🌱-my-tag" into "-my-tag". This change replaces `github-slugger` with `lodash.kebabcase` to ensure that emojis are preserved in the generated slugs, improving the accuracy and consistency of tag representations.

package.json

@@ -19,7 +19,7 @@
     "@resvg/resvg-js": "^2.6.2",
     "astro": "^4.13.0",
     "fuse.js": "^7.0.0",
-    "github-slugger": "^2.0.0",
+    "lodash.kebabcase": "^4.1.1",
     "remark-collapse": "^0.1.2",
     "remark-toc": "^9.0.0",
     "satori": "^0.10.14",
@@ -32,6 +32,7 @@
     "@astrojs/tailwind": "^5.1.0",
     "@tailwindcss/typography": "^0.5.13",
     "@types/github-slugger": "^1.3.0",
+    "@types/lodash.kebabcase": "^4.1.9",
     "@types/react": "^18.3.3",
     "@typescript-eslint/parser": "^6.19.0",
     "astro-eslint-parser": "^0.16.2",