Two #Lagrange patches for the price of one!

https://github.com/skyjake/lagrange/releases/tag/v1.9.5

v1.9.4 and v1.9.5:
- crash when page has an URL-less link line
- home row navigation vs. bindings and macOS menus
- built with SDL 2.0.18
- reverted a line drawing workaround meant for SDL 2.0.16
- updated UI translations

#gemini