Apply /docs redesign

[mtruj013]

Done

• Applied minor updates to align with new Vanilla

QA

• View the site locally in your web browser at: https://microk8s-io-615.demos.haus/docs
• Check that functionality works as expected

Issue / Card

Fixes https://warthogs.atlassian.net/browse/WD-4190

[webteam-app]

Demo starting at https://microk8s-io-615.demos.haus

[codecov[bot]]

Codecov Report

Merging #615 (e8f01a6) into microk8s-refresh (aceaf40) will not change coverage. Report is 1 commits behind head on microk8s-refresh. The diff coverage is n/a.

:exclamation: Current head e8f01a6 differs from pull request most recent head b5d1929. Consider uploading reports for the commit b5d1929 to get more accurate results

@@                Coverage Diff                @@
##           microk8s-refresh     #615   +/-   ##
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  Coverage             72.58%   72.58%           
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  Files                     2        2           
  Lines                    62       62           
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  Hits                     45       45           
  Misses                   17       17           

Flag	Coverage Δ
python	72.58% <ø> (ø)

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[juanruitina]

UX+1!

[mtruj013]

@lyubomir-popov just waiting on design +1 if you could take a look?