Optimise docker stats to not require clearing the whole screen

[Giedriusj1]

Instead of clearing the whole screen and then writing the new stats, we now write the new stats on top of the old text, and then clear the remaining text.

This is a more efficient way to update the stats, as it avoids the flickering that happens when the screen is cleared and rewritten.

This improves upon #5586

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 10 lines in your changes missing coverage. Please review.

Project coverage is 59.49%. Comparing base (9861ce9) to head (cb2f95c).
Report is 2 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5625      +/-   ##
==========================================
- Coverage   59.50%   59.49%   -0.02%     
==========================================
  Files         346      346              
  Lines       29365    29371       +6     
==========================================
  Hits        17474    17474              
- Misses      10916    10922       +6     
  Partials      975      975              

---- 🚨 Try these New Features:

• Flaky Tests Detection - Detect and resolve failed and flaky tests

[laurazard]

LGTM!

I'd like to add some tests/otherwise refactor this area, but that's orthogonal to this PR and this looks safe

[thaJeztah]

LGTM