change whole backend and tables for gorm table references

simplify tables with table components close #31

src/vueLib/models/member.ts

@@ -1,5 +1,10 @@
+import type { Group } from './group';
+import type { Responsible } from './responsible';
+
 export interface Member {
   id: number;
+  memberId?: number;
+  responsibleId?: number | undefined;
   firstName: string;
   lastName: string;
   birthday?: string;
@@ -10,8 +15,8 @@ export interface Member {
   zip?: string;
   phone?: string;
   email?: string;
-  group?: string;
-  responsiblePerson?: Member;
+  group?: Group;
+  responsible?: Responsible;
   firstVisit?: string;
   lastVisit?: string;
 }