Refactor|UI|Client|GridLayout: Fixes and improvements to grid layout
The objective is to avoid redundant calculations by reusing the sameRule instances for cols/rows. Also making a lot of use of sumInto().
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Refactor|UI|Client|GridLayout: Fixes and improvements to grid layout
The objective is to avoid redundant calculations by reusing the same
Rule instances for cols/rows. Also making a lot of use of sumInto().