Rework sidebar pages

* Move sidebar pages from workspace to space level
* Replace array sorting with lexicographical fractional indexing
* Fixes and updates

apps/server/src/core/page/dto/create-page.dto.ts

@@ -1,10 +1,6 @@
 import { IsOptional, IsString, IsUUID } from 'class-validator';
 
 export class CreatePageDto {
-  @IsOptional()
-  @IsUUID()
-  pageId?: string;
-
   @IsOptional()
   @IsString()
   title?: string;

apps/server/src/core/page/dto/move-page.dto.ts

@@ -1,18 +1,21 @@
-import { IsString, IsOptional, IsUUID } from 'class-validator';
+import {
+  IsString,
+  IsUUID,
+  IsOptional,
+  MinLength,
+  MaxLength,
+} from 'class-validator';
 
 export class MovePageDto {
   @IsUUID()
   pageId: string;
 
-  @IsOptional()
   @IsString()
-  after?: string;
+  @MinLength(5)
+  @MaxLength(12)
+  position: string;
 
   @IsOptional()
   @IsString()
-  before?: string;
-
-  @IsOptional()
-  @IsString()
-  parentId?: string | null;
+  parentPageId?: string | null;
 }

apps/server/src/core/page/dto/sidebar-page.dto.ts

@@ -0,0 +1,8 @@
+import { IsOptional, IsUUID } from 'class-validator';
+import { SpaceIdDto } from './page.dto';
+
+export class SidebarPageDto extends SpaceIdDto {
+  @IsOptional()
+  @IsUUID()
+  pageId: string;
+}