- [x] open non-gemini links externally and display differently
 - [ ] keyboard navigation
   - [x] scroll
   - [ ] highlight and follow links
   - [x] forward and back
   - [x] url bar
   - [ ] search in page
 - [x] stdlib url parsing in gemini module
 - [x] nice typography
 - [x] html templates
 - [ ] deal with non utf8 charsets
 - [x] handle all response codes
   - [x] errors (4x, 5x)
   - [x] search