feat: Add a note when upgrading from free to paid plan. (supabase#37631)

Add a note when upgrading from free to paid plan.

Co-authored-by: Ali Waseem <[email protected]>

Author: ivasilov

apps/studio/components/interfaces/Organization/BillingSettings/Subscription/SubscriptionPlanUpdateDialog.tsx

@@ -672,6 +672,19 @@ export const SubscriptionPlanUpdateDialog = ({
                         </div>
                       ))}
                     </div>
+
+                    {currentPlanMeta.id === 'free' && selectedTier !== 'tier_free' && (
+                      <div className="mb-4">
+                        <Admonition type="note">
+                          <p>
+                            Please note: Existing support cases will remain in the Free support
+                            queue after your subscription is upgraded. For faster assistance under
+                            your new plan, please open a new support case once the upgrade is
+                            complete.
+                          </p>
+                        </Admonition>
+                      </div>
+                    )}
                   </div>
                 )}
           </div>