Translation:How are you?
One meaning of the word שלום is "well-being", although this sense isn't used much today except in a few fixed expressions. This would make this question mean "What is your well-being". It sounds a bit strange because the phrasing has changed over time. In biblical Hebrew it would be phrased as "Do you have well-being?" which makes more sense.
No, it makes sense to me, as as-salame(السلامه) in Arabic(which apparently has the same root) also mean well-being, safety. And I can translate this phrase to "How is your 'well-being'?".
Yes, I think that could work as a literal translation. And it can be answered with "שלומי טוב" which literally translates to "My well-being is good.".
If you install the SwiftKey keyboard (a free app) you can choose additional languages. It works very well.
My laptop no longer pulls up the Hebrew keyboard and it doesn't type in Hebrew or "backwards". Somebody gave me instructions a while ago to reinstall, but I didn't have a chance to try it at the time. It would also be great if I could also put it on my (Android) cell phone, too! Anybody?
There is a Duolingo keyboard extension for your browser I think; i use stickers on my keyboard and added Hebrew keyboard in settings. Switch with win+space keys. For Android you have to go to settings, then keyboard, then add a language. Mine is the Google keyboard and I tap a symbol that looks like a globe with latitude and longitude lines.