Deprecate old board (#4352)

* Deprecate old board

* Fix tests

* Fix tests

packages/twenty-front/src/testing/graphqlMocks.ts

@@ -12,7 +12,6 @@ import {
   mockedDuplicateCompanyData,
 } from '~/testing/mock-data/companies';
 import { mockedClientConfig } from '~/testing/mock-data/config';
-import { mockedPipelineSteps } from '~/testing/mock-data/pipeline-steps';
 import { mockedUsersData } from '~/testing/mock-data/users';
 import { mockWorkspaceMembers } from '~/testing/mock-data/workspace-members';
 
@@ -249,29 +248,6 @@ export const graphqlMocks = {
         },
       });
     }),
-    graphql.query('FindManyPipelineSteps', () => {
-      return HttpResponse.json({
-        data: {
-          pipelineSteps: {
-            edges: mockedPipelineSteps.map((step) => ({
-              node: {
-                ...step,
-                opportunities: {
-                  edges: [],
-                },
-              },
-              cursor: null,
-            })),
-            pageInfo: {
-              hasNextPage: false,
-              hasPreviousPage: false,
-              startCursor: null,
-              endCursor: null,
-            },
-          },
-        },
-      });
-    }),
     graphql.query('FindManyOpportunities', () => {
       return HttpResponse.json({
         data: {