feat(rule-management): refactor deduplication fields into fields selector component

Signed-off-by: Manuel Abascal <mjabascal10@gmail.com>

Author: mjabascal10

frontend/src/app/rule-management/app-rule/components/add-rule/add-rule.component.html

@@ -225,7 +225,7 @@
             <app-fields-selector [controlName]="'deduplicateBy'" [rule]="rule" [formGroup]="ruleForm"></app-fields-selector>
           </div>
           <div class="col-6">
-            <app-selector-fields [controlName]="'groupBy'" [rule]="rule" [formGroup]="ruleForm"></app-selector-fields>
+            <app-fields-selector [controlName]="'groupBy'" [rule]="rule" [formGroup]="ruleForm"></app-fields-selector>
           </div>
         </div>
         <div class="w-100 alert alert-info alert-styled-right mb-3">