Site clean (#716)

* init next.js app

* add metadata for keyword selection

* minor heading changes

* updated title and keywords

* updating link to reach planoai.dev

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Co-authored-by: Musa <malikmusa1323@gmail.com>
Co-authored-by: Salman Paracha <salmanparacha@MacBook-Pro-342.local>

apps/katanemo-www/tsconfig.json

@@ -0,0 +1,20 @@
+{
+  "extends": "@katanemo/tsconfig/nextjs.json",
+  "compilerOptions": {
+    "jsx": "react-jsx",
+    "esModuleInterop": true,
+    "paths": {
+      "@/*": ["./src/*"],
+      "@katanemo/ui": ["../../packages/ui/src"]
+    }
+  },
+  "include": [
+    "next-env.d.ts",
+    "**/*.ts",
+    "**/*.tsx",
+    ".next/types/**/*.ts",
+    ".next/dev/types/**/*.ts",
+    "**/*.mts"
+  ],
+  "exclude": ["node_modules"]
+}