New MPActionHelper for editPassword:

MacPass/MPActionHelper.h

@@ -20,6 +20,7 @@ typedef NS_ENUM(NSUInteger, MPActionType) {
   MPActionToggleInspector,
   MPActionLock, // show the lock screen
   MPActionEmptyTrash, // empties the trashcan, if there is one
+  MPActionEditPassword, // change the database password
   MPActionDatabaseSettings, // Show the settings for the database
   MPActionEditTemplateGroup
 };

MacPass/MPActionHelper.m

@@ -21,6 +21,7 @@
                    @(MPActionCopyURL) : @"copyURL:",
                    @(MPActionCopyUsername) : @"copyUsername:",
                    @(MPActionDelete) : @"deleteNode:",
+                   @(MPActionEditPassword) : @"editPassword:",
                    @(MPActionOpenURL) : @"openURL:",
                    @(MPActionToggleInspector) : @"toggleInspector:",
                    @(MPActionLock) : @"lock:",