add a tip about cryptdrive

customize.dist/translations/messages.js

@@ -691,6 +691,7 @@ define(function () {
     out.tips.marker = "You can highlight text in a pad using the \"marker\" item in the styles dropdown menu.";
     out.tips.driveUpload = "Registered users can upload encrypted files by dragging and dropping them into their CryptDrive.";
     out.tips.filenames = "You can rename files in your CryptDrive, this name is just for you.";
+    out.tips.drive = "Logged in users can organize their files in their CryptDrive, accessible from the CryptPad icon at the top left of all pads.";
 
     out.feedback_about = "If you're reading this, you were probably curious why CryptPad is requesting web pages when you perform certain actions";
     out.feedback_privacy = "We care about your privacy, and at the same time we want CryptPad to be very easy to use.  We use this file to figure out which UI features matter to our users, by requesting it along with a parameter specifying which action was taken.";