[FEATURE] Add config command that displays local or remote config

[Nexucis]

I'm adding a new cmd in the CLI:

percli config

It will display the local config or the server config if the flag --online is used.

That might be useful when filling an issue and you want to provide the config in the correct format without leaking the secret.

1. offline cmd

percli config

rest_client_config:
    url: http://localhost:8080
    authorization:
        type: Bearer
        credentials: <secret>
    tlsConfig:
        insecureSkipVerify: false
refresh_token: <secret>
dac:
    output_folder: built

2. online cmd

percli config --online --output=yaml

security:
    readonly: false
    encryption_key: <secret>
    enable_auth: true
    authorization:
        check_latest_update_interval: 30s
        guest_permissions:
            - actions:
                - read
              scopes:
                - '*'
            - actions:
                - create
              scopes:
                - Project
    authentication:
        access_token_ttl: 15m
        refresh_token_ttl: 1d
        disable_sign_up: false
        providers:
            enable_native: true
database:
    file:
        folder: dev/local_db
        extension: json
        case_sensitive: false
schemas:
    panels_path: cue/schemas/panels
    queries_path: cue/schemas/queries
    datasources_path: cue/schemas/datasources
    variables_path: cue/schemas/variables
    interval: 5m
important_dashboards:
    - project: perses
      dashboard: Demo
    - project: testing
      dashboard: DuplicatePanels
    - project: Unknown
      dashboard: Dashboard
information: |-
    # Hello World
    ## File Database setup
provisioning:
    folders:
        - dev/data
    interval: 1h
deactivate_front: false
ephemeral_dashboards_cleanup_interval: 1h