MC-3723: Advanced properties saving when invalid value is specified

- add validation for border-radius

Author: anthoula

app/code/Magento/PageBuilder/view/adminhtml/ui_component/pagebuilder_base_form.xml

@@ -175,6 +175,11 @@
                 </additionalClasses>
                 <addAfter translate="true">px</addAfter>
                 <placeholder translate="true">Default</placeholder>
+                <validation>
+                    <rule name="validate-number" xsi:type="boolean">true</rule>
+                    <rule name="less-than-equals-to" xsi:type="number">50</rule>
+                    <rule name="greater-than-equals-to" xsi:type="number">0</rule>
+                </validation>
             </settings>
         </field>
         <field name="css_classes" sortOrder="60" formElement="input">

app/code/Magento/PageBuilder/view/adminhtml/ui_component/pagebuilder_button_item_form.xml

@@ -166,6 +166,11 @@
                 <additionalClasses>
                     <class name="admin__field-small">true</class>
                 </additionalClasses>
+                <validation>
+                    <rule name="validate-number" xsi:type="boolean">true</rule>
+                    <rule name="less-than-equals-to" xsi:type="number">50</rule>
+                    <rule name="greater-than-equals-to" xsi:type="number">0</rule>
+                </validation>
             </settings>
         </field>
         <field name="margins_and_padding">