chore(server): consolidate dto files (#8201)

chore: conoslidate dto files

server/src/dtos/server-info.dto.ts

@@ -1,7 +1,7 @@
 import { ApiProperty, ApiResponseProperty } from '@nestjs/swagger';
 import type { DateTime } from 'luxon';
 import { FeatureFlags } from 'src/cores/system-config.core';
-import { SystemConfigThemeDto } from 'src/dtos/system-config-theme.dto';
+import { SystemConfigThemeDto } from 'src/dtos/system-config.dto';
 import { IVersion, VersionType } from 'src/utils/version';
 
 export class ServerPingResponse {