Improve Page

* ページをピン留めできるように
* デッキでカラム内でページを見れるように

src/models/entities/user-profile.ts

@@ -1,6 +1,7 @@
 import { Entity, Column, Index, OneToOne, JoinColumn, PrimaryColumn } from 'typeorm';
 import { id } from '../id';
 import { User } from './user';
+import { Page } from './page';
 
 @Entity()
 export class UserProfile {
@@ -118,6 +119,18 @@ export class UserProfile {
 	})
 	public carefulBot: boolean;
 
+	@Column({
+		...id(),
+		nullable: true
+	})
+	public pinnedPageId: Page['id'] | null;
+
+	@OneToOne(type => Page, {
+		onDelete: 'SET NULL'
+	})
+	@JoinColumn()
+	public pinnedPage: Page | null;
+
 	//#region Linking
 	@Column('boolean', {
 		default: false,