chore: use updatedAt instead of editedAt for locked documents (#8324)

- Removes locked documents `editedAt` as it was redundant with the
`updatedAt` timestamp
- Adjust stale lock tests to configure the duration down to 1 second and
await it to not lose any test coverage
- DB performance changes: 
1. Switch to payload.db.find instead of payload.find for
checkDocumentLockStatus to avoid populating the user and other payload
find overhead
   2. Add maxDepth: 1 to user relationship
   3. Add index to global slug

packages/ui/src/providers/DocumentInfo/index.tsx

@@ -193,7 +193,6 @@ const DocumentInfo: React.FC<
           // Send a patch request to update the _lastEdited info
           await requests.patch(`${serverURL}${api}/payload-locked-documents/${lockId}`, {
             body: JSON.stringify({
-              editedAt: new Date(),
               user: { relationTo: user?.collection, value: user?.id },
             }),
             headers: {

packages/ui/src/utilities/buildFormState.ts

@@ -265,9 +265,7 @@ export const buildFormState = async ({
           await req.payload.db.updateOne({
             id: lockedDocument.docs[0].id,
             collection: 'payload-locked-documents',
-            data: {
-              editedAt: new Date().toISOString(),
-            },
+            data: {},
             req,
           })
         }
@@ -284,7 +282,6 @@ export const buildFormState = async ({
                   value: id,
                 }
               : undefined,
-            editedAt: new Date().toISOString(),
             globalSlug: globalSlug ? globalSlug : undefined,
             user: {
               relationTo: [req.user.collection],