"The Tor Browser" -> "Tor Browser"
In working on tpo/web/support#341 I noticed that gettor has "the Tor Browser" in its strings too.
We should go through and get rid of the "the" when appropriate.
There is also a screenshot on the https://tb-manual.torproject.org/downloading/ page that could probably use an update once the new strings are in place.
We could also use this opportunity to update the rest of the strings as needed, but it is fine if not too. :) Thanks!