TaskviewGridLayout ikonja

TaskviewGridLayout 4.1

: Sungho Hwang

TaskviewLayout has two versions.
One is this TaskviewGridLayout and
another is the existing TaskviewFlexLayout.

TaksviewGridLayout works in Thunderbird version 78.0 ~ 89.0a1.

Praise Stephen Kim Sou-hwan.

April 20th 2021.