Added groups - missing user management. Fixed several issues.

src/app/groups/group-page/group-page.component.html

@@ -0,0 +1,38 @@
+<div>
+  <h2>{{group?.name}}</h2>
+
+  <mat-expansion-panel>
+    <mat-expansion-panel-header>
+      <mat-panel-title>Policies</mat-panel-title>
+      <mat-panel-description class="muted">
+        {{policies.length}} polic{{policies.length == 1 ? 'y' : 'ies'}}
+      </mat-panel-description>
+    </mat-expansion-panel-header>
+    <policy-add-button class="add" [groups]="groups" [policies]="policies" [group]="group?.id" />
+    @if (policies.length > 0) {
+    <policy-table [policies]="policies" />
+    }
+  </mat-expansion-panel>
+
+  <mat-expansion-panel>
+    <mat-expansion-panel-header>
+      <mat-panel-title class="danger">Danger Zone</mat-panel-title>
+      <mat-panel-description class="muted">
+        Dangerous actions
+      </mat-panel-description>
+    </mat-expansion-panel-header>
+    <div class="content">
+      <section>
+        <article class="left">
+          <h4>Deletion</h4>
+          <p>Deleting this group will delete everything that is part of it, including policies and permissions.</p>
+        </article>
+        <article class="right">
+          <button mat-raised-button class="delete" (click)="delete()">
+            <mat-icon>delete</mat-icon>Delete this group.
+          </button>
+        </article>
+      </section>
+    </div>
+  </mat-expansion-panel>
+</div>