feat: join field defaultLimit and defaultSort (#8908)

### What?

Allow specifying the defaultSort and defaultLimit to use for populating
a join field

### Why?

It is much easier to set defaults rather than be forced to always call
the join query using the query pattern ("?joins[categories][limit]=0").

### How?

See docs and type changes

test/joins/collections/Categories.ts

@@ -47,7 +47,10 @@ export const Categories: CollectionConfig = {
       label: 'Related Posts',
       type: 'join',
       collection: postsSlug,
+      defaultSort: '-title',
+      defaultLimit: 5,
       on: 'category',
+      maxDepth: 1,
     },
     {
       name: 'hasManyPosts',

test/joins/int.spec.ts

@@ -105,15 +105,6 @@ describe('Joins Field', () => {
       },
       collection: 'categories',
     })
-    // const sortCategoryWithPosts = await payload.findByID({
-    //   id: category.id,
-    //   joins: {
-    //     'group.relatedPosts': {
-    //       sort: 'title',
-    //     },
-    //   },
-    //   collection: 'categories',
-    // })
 
     expect(categoryWithPosts.group.relatedPosts.docs).toHaveLength(10)
     expect(categoryWithPosts.group.relatedPosts.docs[0]).toHaveProperty('id')
@@ -125,11 +116,12 @@ describe('Joins Field', () => {
     const { docs } = await payload.find({
       limit: 1,
       collection: 'posts',
+      depth: 2,
     })
 
     expect(docs[0].category.id).toBeDefined()
     expect(docs[0].category.name).toBeDefined()
-    expect(docs[0].category.relatedPosts.docs).toHaveLength(10)
+    expect(docs[0].category.relatedPosts.docs).toHaveLength(5) // uses defaultLimit
   })
 
   it('should populate relationships in joins with camelCase names', async () => {