Some UI String Fixes

[bitmold]

Things Addressed Here:

• The License dialog was read from the file without any newlines causing it to be crammed and have its hyperlinks 404.
• Some tiny string fixes (..,. appeared in some spots, and also Wi-Fi was referred to by an incorrect variation of Wi-Fi in a good number of places in the app)

The about dialog had a lot of broken URLs and words stuck together because it is partially populated by the LICENSE file which was read in OrbotMainActivity's readFromAssets(Context, String). The issue here is that the file is read with BufferedReader's readLine() which terminates strings at a line feed or carriage return. The fix was to simply append a linefeed after every line the BuferedReader reads (these newlines are later transformed into <br/> elements when the About dialog is getting configured).

It's easy to see what I mean via these screenshots:

You can see in the first URL the "If" from the next sentence is squished against it causing users to have a 404 when they click on it.

With the linefeed fix we no longer have broken URLs and it's a bit easier to read too.

I also changed Wifi into Wi-Fi

[bitmold]

Additionally on the play store there is a typo on the screenshot for Tor bridges. There is an ellipsis with a comma between the second and third period. I searched the project for that string, and it still occurs in the Dutch translation so I added that fix to this PR.

It would be good to post a corrected screenshot on the playstore.