fixed: screenshot of grid has not bottom padding

[starpit]

Fixes #852

[codecov-io]

Codecov Report

Merging #853 into master will decrease coverage by 0.16%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #853      +/-   ##
==========================================
- Coverage   83.18%   83.02%   -0.17%     
==========================================
  Files          99       99              
  Lines        8600     8600              
==========================================
- Hits         7154     7140      -14     
- Misses       1446     1460      +14

Impacted Files	Coverage Δ
app/plugins/ui/commands/shell.js	59.15% <0%> (-1.41%)	⬇️
...ins/modules/activation-visualizations/lib/table.js	93.42% <0%> (-0.86%)	⬇️
app/plugins/modules/plugin/plugin.js	74.1% <0%> (-0.72%)	⬇️
app/content/js/repl.js	90.68% <0%> (-0.61%)	⬇️
app/content/js/ui.js	83.35% <0%> (-0.45%)	⬇️

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