Greetings text always talks about master ticket regardless of login method

[Fang-]

bridge/src/components/Greeting.js

Lines 40 to 41 in f08b3cc

	Keep your Master Ticket safe. No one can recover it for you. But it
	can get you back into Urbit at any time.

We should probably change the phrasing of that to "Keep your login details safe" if they used something else.

[reitraced]

that sounds like a good call tbh. login details is more method agnostic i guess
it could mean a master ticket, wallet, whatever

[tacryt-socryp]

Save us @jyng