Consolidate the netgear_lte configuration

[amelchio]

Breaking Change:

The netgear_lte configuration has been consolidated under netgear_lte:, check the documentation for more information.

Description:

Notes:

• Omitting sensors will set up an unspecified set of default sensors.
• Omitting notify will set up a notify service notify.netgear_lte with no default recipient.
• Default notify target has been renamed recipient (fixes Use CONF_RECIPIENT for default recipient in config #20670).
• Sensors no longer support scan_interval.
• Hostnames no longer have to be repeated, even with multiple modems.

This should hopefully support the next PRs that I am planning:

1. Add more sensors (not all added by default)
2. Update sensor state with the dispatcher helper
3. Maybe add a config entry

Pull request in home-assistant.io with documentation (if applicable): home-assistant/home-assistant.io#9000

Example entry for configuration.yaml:

(The following snippets are both needleesly verbose in order to cover more situations)

Before:

netgear_lte:
  - host: !secret router_hostname
    password: !secret router_password
  - host: !secret failover_modem_hostname
    password: !secret failover_modem_password

notify:
  - platform: netgear_lte
    name: sms
    host: !secret router_hostname
    target: !secret admin_phone
  - platform: netgear_lte
    name: failover_sms
    host: !secret failover_modem_hostname
    target: !secret admin_phone

sensor:
  - platform: netgear_lte
    host: !secret router_hostname
    sensors:
      - usage
      - sms
  - platform: netgear_lte
    host: !secret failover_modem_hostname
    sensors:
      - usage
    scan_interval: 1800

Now:

netgear_lte:
  - host: !secret router_hostname
    password: !secret router_password
    notify:
      - name: sms
        recipient: !secret admin_phone
    sensor:
      monitored_conditions:
        - usage
        - sms
  - host: !secret failover_modem_hostname
    password: !secret failover_modem_password
    notify:
      - name: failover_sms
        recipient: !secret admin_phone
    sensor:
      monitored_conditions:
        - usage

Checklist:

• The code change is tested and works locally.
• Local tests pass with tox.
• There is no commented out code in this PR.

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated in home-assistant.io

If the code communicates with devices, web services, or third-party tools:

• New dependencies have been added to the REQUIREMENTS variable ([example][ex-requir]).
• New dependencies are only imported inside functions that use them ([example][ex-import]).
• New or updated dependencies have been added to requirements_all.txt by running script/gen_requirements_all.py.
• New files were added to .coveragerc.

[amelchio]

Documentation updated.

[MartinHjelmare]

Just some small comments.

[MartinHjelmare]

Nice!

[amelchio]

Thanks for being so careful, it really improved things 🥳