Style fixes for EDA methods

[Mr-Geekman]

IMPORTANT: Please do not create a Pull Request without creating an issue first.

Before submitting (must do checklist)

• Did you read the contribution guide?
• Did you update the docs? We use Numpy format for all the methods and classes.
• Did you write any new necessary tests?
• Did you update the CHANGELOG?

Type of Change

• Examples / docs / tutorials / contributors update
• Bug fix (non-breaking change which fixes an issue)
• Improvement (non-breaking change which improves an existing feature)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Proposed Changes

Look #701.

Related Issue

#701.

Closing issues

Closes #701.

[github-actions]

🚀 Deployed on https://deploy-preview-705--etna-docs.netlify.app

[alex-hse-repository]

Why don't we have grid in notebook with outliers?

[alex-hse-repository]

May you list the exact changes

[codecov-commenter]

Codecov Report

Merging #705 (b637d92) into master (dd3175c) will decrease coverage by 0.32%.
The diff coverage is 20.00%.

@@            Coverage Diff             @@
##           master     #705      +/-   ##
==========================================
- Coverage   83.80%   83.48%   -0.33%     
==========================================
  Files         120      120              
  Lines        6558     6576      +18     
==========================================
- Hits         5496     5490       -6     
- Misses       1062     1086      +24     

Impacted Files	Coverage Δ
etna/analysis/eda_utils.py	53.06% <0.00%> (-1.17%)	⬇️
etna/datasets/tsdataset.py	89.83% <0.00%> (-0.25%)	⬇️
etna/analysis/plotters.py	20.85% <11.11%> (-0.25%)	⬇️
etna/analysis/utils.py	100.00% <100.00%> (ø)
etna/models/nn/tft.py	91.80% <0.00%> (-8.20%)	⬇️
etna/transforms/nn/pytorch_forecasting.py	90.47% <0.00%> (-4.77%)	⬇️

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[alex-hse-repository]

👍