Added pages to see, create, modify & delete redeemable actions. User card top right with disconnect & log out. Code clean up.

src/app/shared/validators/item-exists-in-array.ts

@@ -0,0 +1,14 @@
+import { AbstractControl, ValidationErrors, ValidatorFn } from "@angular/forms";
+
+
+export function createItemExistsInArrayValidator(items: any[], getter: (value: any) => any): ValidatorFn {
+  return (control: AbstractControl): ValidationErrors | null => {
+    const value = control.value;
+    
+    if (!value)
+      return null;
+
+    const matches = items.some(i => getter(i) == value);
+    return matches ? { itemExistsInArray: true } : null;
+  }
+}