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

- update margin and padding boundary data to accept negative values

Author: anthoula

app/code/Magento/PageBuilder/Test/Mftf/Data/AdvancedData.xml

@@ -564,10 +564,10 @@
         <data key="section">advanced</data>
         <data key="fieldName">margins_and_padding</data>
         <data key="invalidString">garbage</data>
-        <data key="invalidMin">-1</data>
+        <data key="invalidMin">-1000</data>
         <data key="invalidMax">1000</data>
         <data key="invalidStringError">Please enter a valid number in this field.</data>
-        <data key="invalidMinError">Please enter a value greater than or equal to 0.</data>
+        <data key="invalidMinError">Please enter a value greater than or equal to -999.</data>
         <data key="invalidMaxError">Please enter a value less than or equal to 999.</data>
     </entity>
 </entities>

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

@@ -201,7 +201,7 @@
                 <validation>
                     <rule name="validate-number" xsi:type="boolean">true</rule>
                     <rule name="less-than-equals-to" xsi:type="number">999</rule>
-                    <rule name="greater-than-equals-to" xsi:type="number">0</rule>
+                    <rule name="greater-than-equals-to" xsi:type="number">-999</rule>
                 </validation>
             </settings>
         </field>