perf: flattenedFields collection/global property, remove deep copying in validateQueryPaths (#9299)

### What?
Improves querying performance of the Local API, reduces copying overhead

### How?

Adds `flattenedFields` property for sanitized collection/global config
which contains fields in database schema structure.
For example, It removes rows / collapsible / unnamed tabs and merges
them to the parent `fields`, ignores UI fields, named tabs are added as
`type: 'tab'`.
This simplifies code in places like Drizzle `transform/traverseFields`.
Also, now we can avoid calling `flattenTopLevelFields` which adds some
overhead and use `collection.flattenedFields` / `field.flattenedFields`.

By refactoring `configToJSONSchema.ts` with `flattenedFields` it also
1. Fixes https://github.com/payloadcms/payload/issues/9467
2. Fixes types for UI fields were generated for `select`



Removes this deep copying for each `where` query constraint
58ac784425/packages/payload/src/database/queryValidation/validateQueryPaths.ts (L69-L73)
which potentially can add overhead if you have a large collection/global
config

UPD:
The overhead is even much more than in the benchmark below if you have
Lexical with blocks.

Benchmark in `relationships/int.spec.ts`:
```ts
const now = Date.now()
for (let i = 0; i < 10; i++) {
  const now = Date.now()
  for (let i = 0; i < 300; i++) {
    const query = await payload.find({
      collection: 'chained',
      where: {
        'relation.relation.name': {
          equals: 'third',
        },
        and: [
          {
            'relation.relation.name': {
              equals: 'third',
            },
          },
          {
            'relation.relation.name': {
              equals: 'third',
            },
          },
          {
            'relation.relation.name': {
              equals: 'third',
            },
          },
          {
            'relation.relation.name': {
              equals: 'third',
            },
          },
          {
            'relation.relation.name': {
              equals: 'third',
            },
          },
          {
            'relation.relation.name': {
              equals: 'third',
            },
          },
          {
            'relation.relation.name': {
              equals: 'third',
            },
          },
          {
            'relation.relation.name': {
              equals: 'third',
            },
          },
          {
            'relation.relation.name': {
              equals: 'third',
            },
          },
        ],
      },
    })
  }

  payload.logger.info(`#${i + 1} ${Date.now() - now}`)
}
payload.logger.info(`Total ${Date.now() - now}`)
```

Before:
```
[02:11:48] INFO: #1 3682
[02:11:50] INFO: #2 2199
[02:11:54] INFO: #3 3483
[02:11:56] INFO: #4 2516
[02:11:59] INFO: #5 2467
[02:12:01] INFO: #6 1987
[02:12:03] INFO: #7 1986
[02:12:05] INFO: #8 2375
[02:12:07] INFO: #9 2040
[02:12:09] INFO: #10 1920
    [PASS] Relationships > Querying > Nested Querying > should allow querying two levels deep (24667ms)
[02:12:09] INFO: Total 24657
```

After:
```
[02:12:36] INFO: #1 2113
[02:12:38] INFO: #2 1854
[02:12:40] INFO: #3 1700
[02:12:42] INFO: #4 1797
[02:12:44] INFO: #5 2121
[02:12:46] INFO: #6 1774
[02:12:47] INFO: #7 1670
[02:12:49] INFO: #8 1610
[02:12:50] INFO: #9 1596
[02:12:52] INFO: #10 1576
    [PASS] Relationships > Querying > Nested Querying > should allow querying two levels deep (17828ms)
[02:12:52] INFO: Total 17818
```

test/admin/payload-types.ts

@@ -82,9 +82,9 @@ export interface Config {
   user: User & {
     collection: 'users';
   };
-  jobs?: {
+  jobs: {
     tasks: unknown;
-    workflows?: unknown;
+    workflows: unknown;
   };
 }
 export interface UserAuthOperations {
@@ -280,8 +280,8 @@ export interface Geo {
  * via the `definition` "customIdTab".
  */
 export interface CustomIdTab {
-  id: string | null;
   title?: string | null;
+  id: string;
   description?: string | null;
   number?: number | null;
   updatedAt: string;
@@ -292,8 +292,8 @@ export interface CustomIdTab {
  * via the `definition` "customIdRow".
  */
 export interface CustomIdRow {
-  id: string | null;
   title?: string | null;
+  id: string;
   description?: string | null;
   number?: number | null;
   updatedAt: string;
@@ -463,7 +463,6 @@ export interface PostsSelect<T extends boolean = true> {
   description?: T;
   number?: T;
   richText?: T;
-  demoUIField?: T;
   group?:
     | T
     | {