Nine - v4.7.1b

• Updated S/MIME feature to sign or encrypt/decrypt with the certificates installed on the Android System.
• Changed the behavior of Nine that was taken when the unlock password expired.
• Fixed the problem not displaying attachments in signed or encrypted some emails.
• Fixed a problem not syncing a shared calendar item.
• Fixed a problem not displaying email list in Galaxy Fold.
• Fixed the picture rotating issue when taking a picture in the app.
• Fixes other bugs and Improves performance.