### 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
"The --signatures option and --requirements-file are mutually exclusive. "
                    "Use the --signatures with positional collection_name args or provide a "
                    "'signatures' key for requirements in the --requirements-file."
                )
            requirements_file = GalaxyCLI._resolve_path(requirements_file)
            requirements = self._parse_requirements_file(
                requirements_file,
                allow_old_format=False,
                artifacts_manager=artifacts_manager,
            )
        else:
            requirements = {
                'collections': [
                    Requirement.from_string(coll_input, artifacts_manager, signatures)
                    for coll_input in collections
                ],
                'roles': [],
            }
        return requirements
    
    
    
    def execute_role(self):
        """
        Perform the action on an Ansible Galaxy role. Must be combined with a further action like delete/install/init
        as listed below.
        """
        
        pass
    def execute_collection(self):