Revert "add view transitions polyfill"

This reverts commit 5e4d51ae0730e3834df660a2e177127c8e636857.

deno.lock

···
     "npm:@astrojs/sitemap@^3.4.1": "3.4.1",
     "npm:@tailwindcss/vite@^4.1.11": "4.1.11_vite@7.0.4__picomatch@4.0.2",
     "npm:astro@^5.11.1": "5.11.1_vite@6.3.5__picomatch@4.0.2_zod@3.25.76",
-    "npm:tailwindcss@^4.1.11": "4.1.11",
-    "npm:view-transitions-polyfill@^1.0.5": "1.0.5"
+    "npm:tailwindcss@^4.1.11": "4.1.11"
   },
   "npm": {
     "@ampproject/remapping@2.3.0": {
···
         "vfile-message"
       ]
     },
-    "view-transitions-polyfill@1.0.5": {
-      "integrity": "sha512-0KhF4YodPuaAlEd8Xz2sfwVU/bBIRfSNE5dX0zKF8RAFmDqu8UIkVppcxXlamfE7ZdLCM/6qpUdH3zFITD6+Yg=="
-    },
     "vite@6.3.5_picomatch@4.0.2": {
       "integrity": "sha512-cZn6NDFE7wdTpINgs++ZJ4N49W2vRp8LCKrn3Ob1kYNtOo21vfDoaV5GzBfLU4MovSAB8uNRm4jgzVQZ+mBzPQ==",
       "dependencies": [
···
         "npm:@astrojs/sitemap@^3.4.1",
         "npm:@tailwindcss/vite@^4.1.11",
         "npm:astro@^5.11.1",
-        "npm:tailwindcss@^4.1.11",
-        "npm:view-transitions-polyfill@^1.0.5"
+        "npm:tailwindcss@^4.1.11"
       ]
     }
   }

package.json

···
     "@astrojs/sitemap": "^3.4.1",
     "@tailwindcss/vite": "^4.1.11",
     "astro": "^5.11.1",
-    "tailwindcss": "^4.1.11",
-    "view-transitions-polyfill": "^1.0.5"
+    "tailwindcss": "^4.1.11"
   }
 }

src/components/BaseHead.astro

···
 <meta property="twitter:description" content={description} />
 <meta property="twitter:image" content={new URL(image, Astro.url)} />
 
-<script src="view-transitions-polyfill"></script>
-
-<ClientRouter />
+<ClientRouter fallback="swap" />