Fix various typos

[ReenigneArcher]

Description

Fixes various typos throughout entire project

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have added or updated the docstring for new or existing methods
• I have added tests when applicable

[JonnyWong16]

At least these two need to be fixed in the tests.

https://github.com/pkkid/python-plexapi/blob/master/plexapi/base.py#L231

https://github.com/pkkid/python-plexapi/blob/master/plexapi/base.py#L231

[ReenigneArcher]

I didn't adjust anything in tests... I'll have a look at that as well.

[ReenigneArcher]

Added a commit for typos in tests

[JonnyWong16]

Missed some?

Examples:

https://github.com/pkkid/python-plexapi/blob/master/tests/test_library.py#L249

https://github.com/pkkid/python-plexapi/blob/master/tests/test_navigation.py#L16

https://github.com/pkkid/python-plexapi/blob/master/tests/test_server.py#L224

There might be even more.

[glensc]

this could be described as breaking change.

anyway, since It was already merged and released, removing the second read:

• Cleanup duplicate header.platform reading #1080

[ReenigneArcher]

My mistake... I should have realized that was a fallback.