Add logo assets and update favicon; modify homepage and navbar for branding

package-lock.json

@@ -11,6 +11,7 @@
         "@tailwindcss/vite": "^4.0.6",
         "react": "^19.0.0",
         "react-dom": "^19.0.0",
+        "react-icons": "^5.4.0",
         "tailwindcss": "^4.0.6"
       },
       "devDependencies": {
@@ -3968,6 +3969,14 @@
         "react": "^19.0.0"
       }
     },
+    "node_modules/react-icons": {
+      "version": "5.4.0",
+      "resolved": "https://registry.npmjs.org/react-icons/-/react-icons-5.4.0.tgz",
+      "integrity": "sha512-7eltJxgVt7X64oHh6wSWNwwbKTCtMfK35hcjvJS0yxEAhPM8oUKdS3+kqaW1vicIltw+kR2unHaa12S9pPALoQ==",
+      "peerDependencies": {
+        "react": "*"
+      }
+    },
     "node_modules/react-is": {
       "version": "16.13.1",
       "resolved": "https://registry.npmjs.org/react-is/-/react-is-16.13.1.tgz",