### Summary

```(venv) ➜  ansible-navigator git:(main) ansible-galaxy collection install cisco.ios -p ./collections
Starting galaxy collection install process
[WARNING]: The specified collections path '/Users/bthornto/github/ansible-navigator/collections' is not part of the configured Ansible collections paths '/Users/bthornto/.ansible/collections:/usr/share/ansible/collections'. The installed collection won't be
picked up in an Ansible run.
```
It will be picked up in an Ansible run, in fact playbook adjacent collections are fully Supported.

Can `, unless within a playbook adjacent collections directory` be added to the message?

### Issue Type

Bug Report

### Component Name

ansible-galaxy

### Ansible Version

```console
$ ansible --version

ansible [core 2.11.0]
  config file = None
  configured module search path = ['/Users/bthornto/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
  ansible python module location = /Users/bthornto/github/ansible-navigator/venv/lib/python3.8/site-packages/ansible
  ansible collection location = /Users/bthornto/.ansible/collections:/usr/share/ansible/collections
  executable location = /Users/bthornto/github/ansible-navigator/venv/bin/ansible
  python version = 3.8.2 (default, Dec 21 2020, 15:06:04) [Clang 12.0.0 (clang-1200.0.32.29)]
  jinja version = 3.0.0
  libyaml = True
```


### Configuration

```console
$ ansible-config dump --only-changed
```


### OS / Environment

all

### Steps to Reproduce

<!--- Paste example playbooks or commands between quotes below -->
```shell
(venv) ➜  ansible-navigator git:(main) ansible-galaxy collection install cisco.ios -p ./collections
Starting galaxy collection install process
[WARNING]: The specified collections path '/Users/bthornto/github/ansible-navigator/collections' is not part of the configured Ansible collections paths '/Users/bthornto/.ansible/collections:/usr/share/ansible/collections'. The installed collection won't be
picked up in an Ansible run.
```


### Expected Results

warning messages indicates that if the installation directory is playbook adjacent and called collections it will be picked up by ansible while running the playbook

### Actual Results

```console
received somewhat invalid warning message
```


### Code of Conduct

- [X] I agree to follow the Ansible Code of Conduct
'Galaxy'.format(galaxy_type))
        install_parser.set_defaults(func=self.execute_install)
        install_parser.add_argument('args', metavar='{0}_name'.format(galaxy_type), nargs='*', **args_kwargs)
        install_parser.add_argument('-i', '--ignore-errors', dest='ignore_errors', action='store_true', default=False,
                                    help=ignore_errors_help)
        install_exclusive = install_parser.add_mutually_exclusive_group()
        install_exclusive.add_argument('-n', '--no-deps', dest='no_deps', action='store_true', default=False,
                                       help="Don't download {0}s listed as dependencies.".format(galaxy_type))
        install_exclusive.add_argument('--force-with-deps', dest='force_with_deps', action='store_true', default=False,
                                       help="Force overwriting an existing {0} and its "
                                            "dependencies.".format(galaxy_type))
        valid_signature_count_help = 'The number of signatures that must successfully verify the collection. This should be a positive integer ' \
                                     'or -1 to signify that all signatures must be used to verify the collection. ' \
                                     'Prepend the value with + to fail if no valid signatures are found for the collection (e.g. +all).'
        ignore_gpg_status_help = 'A status code to ignore during signature verification (for example, NO_PUBKEY). ' \
                                 'Provide this option multiple times to ignore a list of status codes. ' \
                                 'Descriptions for the choices can be seen at L(https://github.com/gpg/gnupg/blob/master/doc/DETAILS#general-status-codes).'
        if galaxy_type == 'collection':
            install_parser.add_argument('-p', '--collections-path', dest='collections_path',
                                        default=self._get_default_collection_path(),
                                        help='The path to the directory containing your collections.')
            install_parser.add_argument('-r', '--requirements-file', dest='requirements',
                                        help='A file containing a list of collections to be installed.')
            install_parser.add_argument('--pre', dest='allow_pre_release', action='store_true',
                                        help='Include pre-release versions. Semantic versioning pre-releases are ignored by default')
            install_parser.add_argument('-U', '--upgrade', dest='upgrade', action='store_true', default=False,
                                        help='Upgrade installed collection artifacts. This will also update dependencies unless --no-deps is provided')
            install_parser.add_argument('--keyring', dest='keyring', default=C.GALAXY_GPG_KEYRING,
                                        help='The keyring used during signature verification')  
            install_parser.add_argument('--disable-gpg-verify', dest='disable_gpg_verify', action='store_true',