feat: ランダム抽出のバグ修正（#132） (#141)

#132

Co-authored-by: miteruzo <miteruzo@naver.com>
Reviewed-on: https://git.miteruzo.com/miteruzo/btrc-hub/pulls/141

frontend/src/components/TagSidebar.tsx

@@ -79,7 +79,7 @@ export default (({ posts }: Props) => {
 		     try
 		     {
 		       const { data } = await axios.get (`${ API_BASE_URL }/posts/random`,
-			   { params: { tags:  tagsQuery.split (' ').filter (e => e !== '').join (','),
+			   { params: { tags:  tagsQuery.split (' ').filter (e => e !== '').join (' '),
 				       match: (anyFlg ? 'any' : 'all') } })
 		       navigate (`/posts/${ (data as Post).id }`)
 		     }