外部タグを分離 (#419) (#420)

**本番 DB のバックアップをかならずすること**

Reviewed-on: #420
Co-authored-by: miteruzo <miteruzo@naver.com>

frontend/src/lib/queryKeys.ts

@@ -11,7 +11,11 @@ export const postsKeys = {
     index:    (p: FetchPostsParams) => ['posts', 'index', p] as const,
     show:     (id: string) => ['posts', id] as const,
     related:  (id: string) => ['related', id] as const,
-    changes:  (p: { post?: string; tag?: string; page: number; limit: number }) =>
+    changes:  (p: { post?: string
+		    tag?: string
+		    externalTag?: string
+		    page: number
+		    limit: number }) =>
 		  ['posts', 'changes', p] as const }
 
 export const gekanatorKeys = {
@@ -26,6 +30,7 @@ export const tagsKeys = {
     index:        (p: FetchTagsParams) => ['tags', 'index', p] as const,
     nicoRoot:     ['tags', 'nico'] as const,
     nicoIndex:    (p: FetchNicoTagsParams) => ['tags', 'nico', 'index', p] as const,
+    externalShow: (id: string) => ['tags', 'nico', id] as const,
     show:         (name: string) => ['tags', name] as const,
     changes:      (p: { id?: string; page: number; limit: number }) =>
 		      ['tags', 'changes', p] as const,