fix(alert): Add list to non-wizard rule form (#25500)

Adds the <List> component to the non-wizard builder form to fix this styling issue. Kinda weird to have another list just for this, but this will be only necessary until the alert wizard GA's

Author: davidenwang

static/app/views/settings/incidentRules/ruleForm/index.tsx

@@ -735,8 +735,10 @@ class RuleFormContainer extends AsyncComponent<Props, State> {
                       thresholdChart={chart}
                       onFilterSearch={this.handleFilterUpdate}
                     />
-                    {triggerForm(hasAccess)}
-                    {ruleNameOwnerForm(hasAccess)}
+                    <List symbol="colored-numeric" initialCounterValue={2}>
+                      {triggerForm(hasAccess)}
+                      {ruleNameOwnerForm(hasAccess)}
+                    </List>
                   </React.Fragment>
                 )
               }