Implement creating qualifications (#17)

Co-authored-by: Phan Huy Tran <p.tran@neusta.de>
Reviewed-on: #17
Reviewed-by: Constantin Simonis <constantin@simonis.lol>

src/app/qualifications/qualifications.component.html

@@ -1,3 +1,6 @@
+<h1 >Qualifications</h1>
+<button (click)="openCreateModal()">Create qualification</button>
+
 @if (qualifications$ | async; as qualifications) {
     @if (qualifications) {
         <table