Add workflow email action (#7279)

- Add the SAVE_EMAIL action. This action requires more setting
parameters than the Serverless Function action.
- Changed the way we computed the workflow diagram. It now preserves
some properties, like the `selected` property. That's necessary to not
close the right drawer when the workflow back-end data change.
- Added the possibility to set a label to a TextArea. This uses a
`<label>` HTML element and the `useId()` hook to create an id linking
the label with the input.

packages/twenty-front/src/modules/workflow/utils/getStepDefaultDefinition.ts

@@ -26,6 +26,27 @@ export const getStepDefaultDefinition = (
         },
       };
     }
+    case 'SEND_EMAIL': {
+      return {
+        id: newStepId,
+        name: 'Send Email',
+        type: 'SEND_EMAIL',
+        valid: false,
+        settings: {
+          subject: 'hello',
+          title: 'hello',
+          template: '{{title}}',
+          errorHandlingOptions: {
+            continueOnFailure: {
+              value: false,
+            },
+            retryOnFailure: {
+              value: false,
+            },
+          },
+        },
+      };
+    }
     default: {
       throw new Error(`Unknown type: ${type}`);
     }