Add custom hooks for time distance and retrieving like count

Documentation added to all custom hooks

hooks/useBeerPostComments.ts

@@ -9,6 +9,17 @@ interface UseBeerPostCommentsProps {
   pageSize: number;
 }
 
+/**
+ * A custom React hook that fetches comments for a specific beer post.
+ *
+ * @param props - The props object.
+ * @param props.pageNum - The page number of the comments to fetch.
+ * @param props.id - The ID of the beer post to fetch comments for.
+ * @param props.pageSize - The number of comments to fetch per page.
+ * @returns An object containing the fetched comments, the total number of comment pages,
+ *   a boolean indicating if the request is currently loading, and a function to mutate
+ *   the data.
+ */
 const useBeerPostComments = ({ pageNum, id, pageSize }: UseBeerPostCommentsProps) => {
   const { data, error, isLoading, mutate } = useSWR(
     `/api/beers/${id}/comments?page_num=${pageNum}&page_size=${pageSize}`,