Clean up module documentation (#36909)

* Clean up module documentation

This PR includes:
- Removal of `default: None` (and variations)
- Removal of `required: false`
- Fixing booleans and `type: bool` where required

* Fix remaining (new) validation issues

lib/ansible/modules/cloud/amazon/s3_logging.py

@@ -27,18 +27,14 @@ options:
   state:
     description:
       - "Enable or disable logging."
-    required: false
     default: present
     choices: [ 'present', 'absent' ]
   target_bucket:
     description:
       - "The bucket to log to. Required when state=present."
-    required: false
-    default: null
   target_prefix:
     description:
       - "The prefix that should be prepended to the generated log files written to the target_bucket."
-    required: false
     default: ""
 extends_documentation_fragment:
     - aws