Add isort check to pre commit hook

[albi3ro]

Context:

When making a recent PR, I messed up isort because it wasn't being checked by the precommit hook.

Description of the Change:

Adds isort to the precommit hook.

Benefits:

Fewer commits that are only fixing style issues.

Possible Drawbacks:

Related GitHub Issues:

[github-actions]

Hello. You may have forgotten to update the changelog!
Please edit .github/CHANGELOG.md with:

• A one-to-two sentence description of the change. You may include a small working example for new features.
• A link back to this PR.
• Your name (or GitHub username) in the contributors section.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 33.25%. Comparing base (f4b244f) to head (9e2d2c0).
Report is 1 commits behind head on master.

❗ There is a different number of reports uploaded between BASE (f4b244f) and HEAD (9e2d2c0). Click for more details.

HEAD has 1 upload less than BASE

Flag	BASE (f4b244f)	HEAD (9e2d2c0)
	7	6

Additional details and impacted files

@@             Coverage Diff             @@
##           master    #1052       +/-   ##
===========================================
- Coverage   94.36%   33.25%   -61.12%     
===========================================
  Files         233       29      -204     
  Lines       39236     2607    -36629     
===========================================
- Hits        37026      867    -36159     
+ Misses       2210     1740      -470     

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[josephleekl]

Awesome, thanks @albi3ro !