Enable deletion of relation fields (#5338)

In this PR
1. Enable deletion of relation fields in the product and via the api
(migration part was missing in the api)
3. Change wording, only use "deactivate" and "delete" everywhere (and
not a mix of the two + "disable", "erase")

packages/twenty-front/src/pages/settings/data-model/SettingsObjectFieldEdit.tsx

@@ -64,7 +64,7 @@ export const SettingsObjectFieldEdit = () => {
   const activeObjectMetadataItem =
     findActiveObjectMetadataItemBySlug(objectSlug);
 
-  const { disableMetadataField } = useFieldMetadataItem();
+  const { deactivateMetadataField } = useFieldMetadataItem();
   const activeMetadataField = activeObjectMetadataItem?.fields.find(
     (metadataField) =>
       metadataField.isActive && getFieldSlug(metadataField) === fieldSlug,
@@ -142,8 +142,8 @@ export const SettingsObjectFieldEdit = () => {
     }
   };
 
-  const handleDisable = async () => {
-    await disableMetadataField(activeMetadataField);
+  const handleDeactivate = async () => {
+    await deactivateMetadataField(activeMetadataField);
     navigate(`/settings/objects/${objectSlug}`);
   };
 
@@ -201,12 +201,15 @@ export const SettingsObjectFieldEdit = () => {
           </Section>
           {!isLabelIdentifier && (
             <Section>
-              <H2Title title="Danger zone" description="Disable this field" />
+              <H2Title
+                title="Danger zone"
+                description="Deactivate this field"
+              />
               <Button
                 Icon={IconArchive}
-                title="Disable"
+                title="Deactivate"
                 size="small"
-                onClick={handleDisable}
+                onClick={handleDeactivate}
               />
             </Section>
           )}