* Convert network mode from sensor to select for huawei_lte
This also introduces the select platform to huawei_lte integration.
* Move (networkmode, str) mapping to const
Also, rebase on top of the current dev
* Fix variable naming, initialize name
* Fix wrong key for router access
* Typing fixes
* Adapt to current way of registering subscriptions
* Simplify option management, make translatable
* Make use of custom entity description
* Add icon
* Revert sensor formatting changes, move to another PR
* Improve entity class naming
* Add test
* Make sure entity descriptions define a setter function
---------
Co-authored-by: Teemu Rytilahti <tpr@iki.fi>
