v0.2.0

https://github.com/Daiki48/TerraceCat/blob/main/release-note/v0.2.0.md

Added

• Blue underlining on the active tab.

Change

• Change the entire color scheme to a blue base, including the sidebar and status bar.
• The light blue color makes it easy to see.
• Changed the color scheme of the menu to brighter, because it was too dark in v0.1.0.
• The color of the title bar and menu text was matched to other colors.If only this part is black, it is not beautiful.