[REQUIRES_CACHE_FLUSH][GQL_VIEW_GROUP_API_BREAKING_CHANGE] ViewGroup in v2 (#15052)

# Introduction
Adding view-group to core engine v2
Following https://github.com/twentyhq/twenty/pull/15010 ( same pattern )

## What's done
- Created flat-view-group
- flat view group runner
- flat view group builder
- create view group service v2 and input transpilers
- refactor the existing view group resolver to fix standard (
BREAKING_CHANGE on graphql api update especially ) REST stays the same
- refactored the front to consume the mutations autogenerated

close https://github.com/twentyhq/core-team-issues/issues/1665

packages/twenty-front/src/modules/views/hooks/useSaveCurrentViewGroups.ts

@@ -63,7 +63,17 @@ export const useSaveCurrentViewGroups = () => {
         }
 
         await updateViewGroupRecords([
-          { ...viewGroupToSave, id: existingField.id },
+          {
+            input: {
+              id: existingField.id,
+              update: {
+                isVisible: viewGroupToSave.isVisible,
+                position: viewGroupToSave.position,
+                fieldMetadataId: viewGroupToSave.fieldMetadataId,
+                fieldValue: viewGroupToSave.fieldValue,
+              },
+            },
+          },
         ]);
       },
     [
@@ -118,7 +128,17 @@ export const useSaveCurrentViewGroups = () => {
               return undefined;
             }
 
-            return { ...viewGroupToSave, id: existingField.id };
+            return {
+              input: {
+                id: existingField.id,
+                update: {
+                  isVisible: viewGroupToSave.isVisible,
+                  position: viewGroupToSave.position,
+                  fieldMetadataId: viewGroupToSave.fieldMetadataId,
+                  fieldValue: viewGroupToSave.fieldValue,
+                },
+              },
+            };
           })
           .filter(isDefined);
 
@@ -131,7 +151,14 @@ export const useSaveCurrentViewGroups = () => {
         );
 
         await Promise.all([
-          createViewGroupRecords({ viewGroupsToCreate, viewId: view.id }),
+          createViewGroupRecords(
+            viewGroupsToCreate.map((viewGroup) => ({
+              input: {
+                ...viewGroup,
+                viewId: view.id,
+              },
+            })),
+          ),
           updateViewGroupRecords(viewGroupsToUpdate),
         ]);
       },