chore(dashboard) change default number of rounds value to 3 rounds

Author: FerTV

nebula/frontend/templates/deployment.html

@@ -437,7 +437,7 @@ <h5 class="step-number">Participants <i class="fa fa-users"></i>
                     </h5>
                     <h5 class="step-title">Number of rounds</h5>
                     <div class="form-check form-check-inline">
-                        <input type="number" class="form-control" id="rounds" placeholder="Number of rounds" value="10"
+                        <input type="number" class="form-control" id="rounds" placeholder="Number of rounds" value="3"
                             style="display: inline; width: 20%">
                     </div>
                     <h5 class="step-title">Logging</h5>