Tidy up validate-modules ignores for notification modules (#1229) (#1232)

* fixed validation-modules for plugins/modules/notification/bearychat.py

* fixed validation-modules for plugins/modules/notification/campfire.py

* fixed validation-modules for plugins/modules/notification/catapult.py

* fixed validation-modules for plugins/modules/notification/flowdock.py

* fixed validation-modules for plugins/modules/notification/grove.py

* fixed validation-modules for plugins/modules/notification/hipchat.py

* fixed validation-modules for plugins/modules/notification/irc.py

* fixed validation-modules for plugins/modules/notification/jabber.py

* fixed validation-modules for plugins/modules/notification/logentries_msg.py

* fixed validation-modules for plugins/modules/notification/mail.py

* fixed validation-modules for plugins/modules/notification/matrix.py

* fixed validation-modules for plugins/modules/notification/mattermost.py

* fixed validation-modules for plugins/modules/notification/mqtt.py

* fixed validation-modules for plugins/modules/notification/nexmo.py

* fixed validation-modules for plugins/modules/notification/office_365_connector_card.py

* fixed some docs issues in plugins/modules/notification/pushbullet.py, but cannot remove the ignore lines yet

* fixed validation-modules for plugins/modules/notification/pushover.py

* fixed some docs issues in plugins/modules/notification/rocketchat.py, but cannot remove all ignore lines yet

* fixed validation-modules for plugins/modules/notification/say.py

* fixed validation-modules for plugins/modules/notification/sendgrid.py

* fixed validation-modules for plugins/modules/notification/slack.py

* fixed validation-modules for plugins/modules/notification/syslogger.py

* fixed validation-modules for plugins/modules/notification/telegram.py

* fixed validation-modules for plugins/modules/notification/twilio.py

* fixed validation-modules for plugins/modules/notification/typetalk.py

* Enabling validation-modules for modules in: notification

* removed naughty trailing space

(cherry picked from commit 24f780ec9a)

Co-authored-by: Alexei Znamensky <103110+russoz@users.noreply.github.com>

plugins/modules/notification/pushbullet.py

@@ -18,28 +18,34 @@ description:
    - This module sends push notifications via Pushbullet to channels or devices.
 options:
     api_key:
+        type: str
         description:
             - Push bullet API token
         required: true
     channel:
+        type: str
         description:
             - The channel TAG you wish to broadcast a push notification,
               as seen on the "My Channels" > "Edit your channel" at
               Pushbullet page.
     device:
+        type: str
         description:
             - The device NAME you wish to send a push notification,
               as seen on the Pushbullet main page.
     push_type:
+        type: str
         description:
           - Thing you wish to push.
         default: note
         choices: [ "note", "link" ]
     title:
+        type: str
         description:
           - Title of the notification.
         required: true
     body:
+        type: str
         description:
           - Body of the notification, e.g. Details of the fault you're alerting.