Issue #27925, moved the submit button to the inside of the <form>

Placing the submit button inside the `<form id="purchaseorder-form"...></form>` makes implicit submission possible

Author: per-oddny

app/code/Magento/OfflinePayments/view/frontend/web/template/payment/purchaseorder-form.html

@@ -42,27 +42,29 @@
                     </div>
                 </div>
             </fieldset>
-        </form>
-        <div class="checkout-agreements-block">
-            <!-- ko foreach: $parent.getRegion('before-place-order') -->
-                <!-- ko template: getTemplate() --><!-- /ko -->
-            <!--/ko-->
-        </div>
-        <div class="actions-toolbar" id="review-buttons-container">
-            <div class="primary">
-                <button class="action primary checkout"
-                        type="submit"
-                        data-bind="
-                        click: placeOrder,
-                        attr: {title: $t('Place Order')},
-                        enable: (getCode() == isChecked()),
-                        css: {disabled: !isPlaceOrderActionAllowed()}
-                        "
-                        data-role="review-save">
-                    <span data-bind="i18n: 'Place Order'"></span>
-                </button>
+
+            <div class="checkout-agreements-block">
+                <!-- ko foreach: $parent.getRegion('before-place-order') -->
+                    <!-- ko template: getTemplate() --><!-- /ko -->
+                <!--/ko-->
             </div>
-        </div>
+
+            <div class="actions-toolbar" id="review-buttons-container">
+                <div class="primary">
+                    <button class="action primary checkout"
+                            type="submit"
+                            data-bind="
+                            click: placeOrder,
+                            attr: {title: $t('Place Order')},
+                            enable: (getCode() == isChecked()),
+                            css: {disabled: !isPlaceOrderActionAllowed()}
+                            "
+                            data-role="review-save">
+                        <span data-bind="i18n: 'Place Order'"></span>
+                    </button>
+                </div>
+            </div>
+        </form>
     </div>
 </div>
-        
+