Update SaveButton to be either an input or a button element, and restore inputs that were previously switched to buttons

templates/portfolios/task_orders/invitations.html

@@ -60,7 +60,7 @@
             {{ Icon("x") }}
             <span>Cancel</span>
           </a>
-          {{ SaveButton(text='Save Changes') }}
+          {{ SaveButton(text='Save Changes', element="input") }}
         </div>
       </div>
     </template>

templates/portfolios/task_orders/review.html

@@ -103,7 +103,7 @@
       {% endblock %}
 
       <div class='action-group'>
-        {{ SaveButton(text="Continue") }}
+        {{ SaveButton(text="Continue", element="input") }}
       </div>
 
     </form>

templates/portfolios/task_orders/so_review.html

@@ -32,7 +32,7 @@
           {{ MultiCheckboxInput(form.required_distribution) }}
 
           <div class="action-group">
-            {{ SaveButton(text='Continue') }}
+            {{ SaveButton(text='Continue', additional_classes="usa-button-big") }}
           </div>
         </form>
       </div>