Simple patch to set a custom User-Agent. Add to the "Choices" the following strings
useragent : myUserAgent
If useragent is null or not set, the default User-Agent of Netsurf will be used
Advantage of a custom one
It add somehow, a bit of privacy by not giving away what browser you are using
Many website doesn't not render properly or are unusable, example with Google
Display of Google using default User-Agent
Display of Google using custom User-Agent
(Lynx/2.9.0dev.5 libwww-FM/2.14 SSL-MM/1.4.1 OpenSSL/1.1.1g)
