Feat error404 page (#1009)

* Create error 404 not found page

The code contains the data for error page 404.

* Optimised Server Build

This piece of code contains code for running production server

* Optimised Production Build

The package.json and node_modules outside webmasterlog folder have been emove , the sharp library is installed successfully.

webmasterlog/.eslintrc.json

@@ -1,3 +1,5 @@
 {
-  "extends": ["next/core-web-vitals", "next/typescript"]
+  "extends": ["next/core-web-vitals", "next/typescript"],"rules":{
+    "react/no-unescaped-entities":"off"
+  }
 }