devel/lazygit: Update to 0.2.1

Also, while here, fix typos in pkg-descr.

Approved by: hrs (mentor)
Relnotes: https://github.com/jesseduffield/lazygit/releases/tag/v0.2.0

		https://github.com/jesseduffield/lazygit/releases/tag/v0.2.1

Differential Revision: https://reviews.freebsd.org/D16933