add category topic page

Signed-off-by: nurRiyad <asadnurriyad@gmail.com>

components/category/topic.vue

@@ -0,0 +1,9 @@
+<template>
+  <div class="container mx-auto">
+    <div class="p-6 my-4 mx-3 rounded-md bg-gray-200">
+      <h1 class="text-black font-semibold leading-tight text-4xl md:text-5xl my-5">
+        #{{ $route.params.category }}
+      </h1>
+    </div>
+  </div>
+</template>