Tooltip are always dark even on light theme. 
Please just add some style for the text  prefect :+1: 
[Topology - Task Editor] Task validation tooltip is unreadable while in Light Editor / Theme
### Expected Behavior

We should be able to read tooltip even in Light theme

### Actual Behaviour

![image](https://user-images.githubusercontent.com/37618489/236160158-f4a66da2-02b5-47d8-b38a-5ab132f390f9.png)
![image](https://user-images.githubusercontent.com/37618489/236160423-2003e0e5-7c1b-4c68-a558-af100509996f.png)


### Steps To Reproduce

Light mode editor
Go to Topology
Edit a task
Tooltip is unreadable

### Environment Information

- Kestra Version: 0.9.0-SNAPSHOT

### Example flow

_No response_
ui/src/components/flows/ValidationError.vue
ui/src/components/flows/ValidationError.vue
diff --git a/ui/src/components/flows/ValidationError.vue b/ui/src/components/flows/ValidationError.vue
index 7a169d62a9..91efd35cfc 100644
--- a/ui/src/components/flows/ValidationError.vue
+++ b/ui/src/components/flows/ValidationError.vue
@@ -37,6 +37,10 @@
         max-width: 40vw;
         white-space: pre-wrap;
         background: transparent;
+        color: var(--bs-gray-100);
+        html.dark & {
+            color: var(--bs-gray-900);
+        }
         padding: 0;
     }
 
