Upgraded deepl-cli code

[Monsterovich]

I wanted to make one change at first, but decided to put everything into one PR. This PR improves the following:

• Added support for skeleton display of translated text. Fixes Partial translation error #253.
• Fixed a bug using the wrong button locator when use_dom_submit = True.
• The code now also closes the Chrome extension popup that possibly can prevent clicking on language buttons (also for use_dom_submit = True).
• Update: also changed the max chars limit from 3000 to 1500.

[Monsterovich]

ping @eggplants

[Monsterovich]

@eggplants Now the code doesn't run:

Traceback (most recent call last):
  File "/home/monsterovich/Scripts/deepl_translate_clipboard.py", line 7, in <module>
    from deepl import deepl
  File "/home/monsterovich/.local/lib/python3.10/site-packages/deepl/__init__.py", line 3, in <module>
    from .deepl import DeepLCLI, DeepLCLIError
  File "/home/monsterovich/.local/lib/python3.10/site-packages/deepl/deepl.py", line 203
    const t )
    ^^^^^^^
SyntaxError: f-string: invalid syntax. Perhaps you forgot a comma?

[eggplants]

Thank you for your contribution,

This codebase is corrupt for a while due to deepl's update and lack of maintenance for deepl-cli. Inappropriate fixtures will be fixed and be published to PyPI with some fixture to make translation successfully soon.

[Monsterovich]

Thank you for your contribution,

This codebase is corrupt for a while due to deepl's update and lack of maintenance for deepl-cli. Inappropriate fixtures will be fixed and be published to PyPI with some fixture to make translation successfully soon.

@eggplants Eh, just quickly merge this -> #268