Add support for ruff and pylint

[andrijapau]

Context:

Prior to this PR, this repository had no support for linting with insufficient GitHub actions. This led to a code-base full of bad practices.

Description of the Change:

A couple of things have been affected

• Add support for linting packages (ruff and pylint)
• Clean-up source code and test suite based on these new rules
• Clean-up dependencies
• Improve GitHub action (add PR template, improve formatting and linting workflows)

Benefits:

Repository is more organized and employs better coding practices.

Possible Drawbacks: None

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (f400595) to head (fdd6bc0).

Additional details and impacted files

@@            Coverage Diff            @@
##            master       #78   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            6         6           
  Lines          171       173    +2     
=========================================
+ Hits           171       173    +2     

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