[COMMAND MENU ITEMS] Add engine component key (#18554)

## PR Description

In the process of migrating all the existing commands to the backend, we
stumbled across a couple of problems that made us reconsider the full
migration. This PR introduces a way for command menu items to bypass
front components and to directly reference a frontend component from
twenty front.

It:
- Introduces a `engineFrontComponentKey` field on `CommandMenuItem` as
an alternative to `frontComponentId` and `workflowVersionId`, allowing
command menu items to reference frontend components by key directly
rather than requiring a FrontComponent entity
- Updates the DB constraint to allow exactly one of `workflowVersionId`,
`frontComponentId`, or `engineFrontComponentKey`

### All standard command menu items from the frontend which use
`standardFrontComponentKey`

These are all commands that execute a GraphQL query or a mutation.
Two mains concerned have been raised that made us go with this
(temporary) architecture instead:
- If those commands are part of the standard application, they can only
alter objects from that application and not custom objects.
- We would need to implement a way to trigger optimistic rendering from
the front components, which might take some time to implement.

List:
- Create new record
- Delete (single record)
- Delete records (multiple)
- Restore record
- Restore records (multiple)
- Permanently destroy record
- Permanently destroy records (multiple)
- Add to favorites
- Remove from favorites
- Merge records
- Duplicate Dashboard
- Save Dashboard
- Save Page Layout
- Activate Workflow
- Deactivate Workflow
- Discard Draft (workflow)
- Test Workflow
- Tidy up workflow
- Duplicate Workflow
- Stop (workflow run)
- Use as draft (workflow version)

---------

Co-authored-by: Charles Bochet <charles@twenty.com>

packages/twenty-server/src/engine/metadata-modules/flat-entity/constant/__tests__/__snapshots__/all-universal-flat-entity-properties-to-compare-and-stringify.constant.spec.ts.snap

@@ -30,6 +30,7 @@ exports[`ALL_UNIVERSAL_FLAT_ENTITY_PROPERTIES_TO_COMPARE_AND_STRINGIFY should ma
       "availabilityType",
       "conditionalAvailabilityExpression",
       "availabilityObjectMetadataUniversalIdentifier",
+      "engineComponentKey",
     ],
     "propertiesToStringify": [],
   },

packages/twenty-server/src/engine/metadata-modules/flat-entity/constant/all-entity-properties-configuration-by-metadata-name.constant.ts

@@ -1032,6 +1032,11 @@ export const ALL_ENTITY_PROPERTIES_CONFIGURATION_BY_METADATA_NAME = {
       toStringify: false,
       universalProperty: 'frontComponentUniversalIdentifier',
     },
+    engineComponentKey: {
+      toCompare: true,
+      toStringify: false,
+      universalProperty: undefined,
+    },
     workflowVersionId: {
       toCompare: false,
       toStringify: false,