feat: custom branding (#112)

* add first concept

* remove setup status

* split config page in multiple components

* add custom branding docs

* add test email button

* fix invalid email from header

* add migration

* mount images to host

* update docs

* remove unused endpoint

* run formatter

backend/src/config/dto/adminConfig.dto.ts

@@ -2,6 +2,9 @@ import { Expose, plainToClass } from "class-transformer";
 import { ConfigDTO } from "./config.dto";
 
 export class AdminConfigDTO extends ConfigDTO {
+  @Expose()
+  name: string;
+
   @Expose()
   secret: boolean;
 
@@ -14,9 +17,6 @@ export class AdminConfigDTO extends ConfigDTO {
   @Expose()
   obscured: boolean;
 
-  @Expose()
-  category: string;
-
   from(partial: Partial<AdminConfigDTO>) {
     return plainToClass(AdminConfigDTO, partial, {
       excludeExtraneousValues: true,