style: fix whitespace and formatting

[lotharbach]

The contributing guide advises to run make lint. I fixed all existing ones in this separate PR before starting to add my own new errors.

Before:

(teslajsonpy-py3.11) ~/src/teslajsonpy (dev ✗) make lint
poetry run flake8 teslajsonpy
teslajsonpy/controller.py:342:1: W293 blank line contains whitespace
teslajsonpy/controller.py:347:10: W291 trailing whitespace
teslajsonpy/controller.py:415:1: W293 blank line contains whitespace
teslajsonpy/controller.py:425:67: W291 trailing whitespace
teslajsonpy/controller.py:426:1: W293 blank line contains whitespace
teslajsonpy/controller.py:428:25: E126 continuation line over-indented for hanging indent
teslajsonpy/controller.py:429:21: E121 continuation line under-indented for hanging indent
teslajsonpy/controller.py:429:22: W291 trailing whitespace
teslajsonpy/controller.py:446:22: W291 trailing whitespace
teslajsonpy/controller.py:697:1: W293 blank line contains whitespace
teslajsonpy/controller.py:704:1: W293 blank line contains whitespace
teslajsonpy/controller.py:707:1: W293 blank line contains whitespace
teslajsonpy/controller.py:716:66: W291 trailing whitespace
teslajsonpy/controller.py:810:1: W293 blank line contains whitespace
teslajsonpy/controller.py:813:1: W293 blank line contains whitespace
teslajsonpy/energy.py:125:27: W291 trailing whitespace
teslajsonpy/energy.py:156:42: W291 trailing whitespace
teslajsonpy/energy.py:158:1: W293 blank line contains whitespace
teslajsonpy/energy.py:160:5: E303 too many blank lines (2)
make: *** [flake8] Error 1

After:

(teslajsonpy-py3.11) ~/src/teslajsonpy (fix-make-lint ✔) make lint
poetry run flake8 teslajsonpy
poetry run pydocstyle teslajsonpy
poetry run pylint teslajsonpy

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Your code has been rated at 10.00/10 (previous run: 10.00/10, +0.00)

[alandtse]

Thanks. I forgot whether we set up a pre-commit or something to enforce this. But definitely do appreciate you doing the cleanup work.