docs: moves collection and globals admin docs to their respective config overviews (#10743)

Similar to #10742. Collection and global-level admin options are
currently documented within the "admin > collections" and "admin >
globals" pages, respectively. This makes them hard to find because
users, myself included, intuitively navigate to the collection and
global overview docs to locate this information before realizing it
lives elsewhere. Now, they are rendered within "configuration >
collections" and "configuration > globals" as expected and the old pages
have been removed altogether.

Author: jacobsfletch

docs/admin/collections.mdx

@@ -18,8 +18,8 @@ All Custom Components in Payload are [React Server Components](https://react.dev
 There are four main types of Custom Components in Payload:
 
 - [Root Components](#root-components)
-- [Collection Components](./collections#custom-components)
-- [Global Components](./globals#custom-components)
+- [Collection Components](../configuration/collections/#custom-components)
+- [Global Components](../configuration/globals#custom-components)
 - [Field Components](../fields/overview#custom-components)
 
 To swap in your own Custom Component, first consult the list of available components, determine the scope that corresponds to what you are trying to accomplish, then [author your React component(s)](#building-custom-components) accordingly.
@@ -185,7 +185,7 @@ Each Custom Component receives the following props by default:
 
 <Banner type="warning">
   **Reminder:**
-  All Custom Components also receive various other props that are specific component being rendered. See [Root Components](#root-components), [Collection Components](./collections#custom-components), [Global Components](./globals#custom-components), or [Field Components](../fields/overview#custom-components) for a complete list of all default props per component.
+  All Custom Components also receive various other props that are specific component being rendered. See [Root Components](#root-components), [Collection Components](../configuration/collections#custom-components), [Global Components](../configuraiton/globals#custom-components), or [Field Components](../fields/overview#custom-components) for a complete list of all default props per component.
 </Banner>
 
 ### Custom Props
@@ -504,7 +504,7 @@ The following options are available:
 
 <Banner type="success">
   **Note:**
-  You can also use set [Collection Components](./collections#custom-components) and [Global Components](./globals#custom-components) in their respective configs.
+  You can also use set [Collection Components](../configuration/collections#custom-components) and [Global Components](../configuration/globals#custom-components) in their respective configs.
 </Banner>
 
 ### Custom Providers