LizGoban 0.5.0-pre3

• Upgrade the built-in engine of the all-in-one package to KataGo 1.5.0 (OpenCL) for better performance in some environments.
• Borrow some ideas from KaTrain.
  • Show mistakes and actually punished scores on stones.
  • Click on a stone to temporarily show the past board.
  • Double-click on a stone to jump to the move.
• Improve display by "c" key + mouse hover on existing stones.
• Improve "Tool > Experimental > Tsumego frame" for solving life & death problems. (See "Tips" section in "Help" menu.)
• Officially support reuse of analyses like Lizzie.
• Add "Save/Copy SGF with analysis" into menu. (compatible with Lizzie 0.7.2)
• Automatically start quick overview after reading SGF.
• Stop pondering in match vs. AI if human's move is played in pausing.
• Fix minor bugs etc.

Incompatibilities:

• Upgrade libraries (Electron 9, etc.). So you may need to do "npm install" again.