Logos Changes (#862)

* Changes to some logos

 - Changed Bahnhof and CryptPad logos so they're no longer stretched
 - Added a logo for Firefox Send
 - Chaged ZeroBin logo
 - Changed VeraCrypt logo with a bigger one

* Tor-Project -> Tor-Browser logo

_includes/sections/browser-recommendation.html

@@ -4,7 +4,7 @@
 
   {% include card.html color="success"
   title="Tor Browser"
-  image="/assets/img/tools/Tor-Project.png"
+  image="/assets/img/tools/Tor-Browser.png"
   url="https://www.torproject.org/"
   tor="http://expyuzz4wqqyqhjn.onion"
   footer='OS: Windows, macOS, Linux, <a href="https://mike.tig.as/onionbrowser/">iOS</a>, <a href="https://www.torproject.org/docs/android.html.en">Android</a>, <a href="https://github.com/torbsd/openbsd-ports">OpenBSD.</a>'

_includes/sections/file-sharing.html

@@ -12,7 +12,7 @@
 
   {% include card.html color="primary"
   title="Firefox Send"
-  image="/assets/img/tools/Firefox.png"
+  image="/assets/img/tools/Firefox-Send.png"
   url="https://send.firefox.com/"
   footer='OS: Browser and Android'
   description="Send uses end-to-end encryption to keep your data secure from the moment you share to the moment your file is opened. It also offers security controls that you can set. You can choose when your file link expires, the number of downloads, and whether to add an optional password for an extra layer of security."