fix(core): mem leaks w/orphan DOM elements when disposing

[ghiscoding]

No description provided.

[codecov]

Codecov Report

Merging #153 (50063db) into master (6095c7c) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##            master      #153    +/-   ##
==========================================
  Coverage   100.00%   100.00%            
==========================================
  Files          196       196            
  Lines        11396     11468    +72     
  Branches      3878      3763   -115     
==========================================
+ Hits         11396     11468    +72     

Impacted Files	Coverage Δ
packages/common/src/editors/autoCompleteEditor.ts	100.00% <100.00%> (ø)
packages/common/src/editors/checkboxEditor.ts	100.00% <100.00%> (ø)
packages/common/src/editors/dateEditor.ts	100.00% <100.00%> (ø)
packages/common/src/editors/floatEditor.ts	100.00% <100.00%> (ø)
packages/common/src/editors/integerEditor.ts	100.00% <100.00%> (ø)
packages/common/src/editors/longTextEditor.ts	100.00% <100.00%> (ø)
packages/common/src/editors/selectEditor.ts	100.00% <100.00%> (ø)
packages/common/src/editors/sliderEditor.ts	100.00% <100.00%> (ø)
packages/common/src/editors/textEditor.ts	100.00% <100.00%> (ø)
...ages/common/src/extensions/autoTooltipExtension.ts	100.00% <100.00%> (ø)
... and 23 more

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