wip: update some screenshots

Signed-off-by: Maksim Sukharev <antreesy.web@gmail.com>

user_manual/talk/advanced_features.rst

@@ -24,7 +24,7 @@ You can change this behavior in the conversation settings. Additionally, you can
 To have more control over your privacy, you can also configure the visibility of your typing and read indicators in ``Talk settings``:
 
 .. image:: images/privacy-settings.png
-    :width: 400px
+    :width: 600px
 
 
 Matterbridge
@@ -119,13 +119,13 @@ That way you can stay informed about scheduled meetings or activities directly w
 If Calendar app is enabled, you can click on an event to view details.
 
 .. image:: images/events-upcoming.png
-    :width: 400px
+    :width: 500px
 
 It is possible to schedule a meeting directly from a conversation. In the dialog, you can set meeting details such as title, date, time and description.
 You can also choose to invite all participants including email guests, or select specific ones.
 
 .. image:: images/talk-schedule-meeting.png
-   :width: 400px
+   :width: 500px
 
 Schedule from Calendar
 ^^^^^^^^^^^^^^^^^^^^^^

user_manual/talk/talk_basics.rst

@@ -374,7 +374,7 @@ Changing permissions of a user that joined a public conversation will also perma
 Moderators can configure the conversation. Select ``Conversation settings`` from the ``...`` menu of the conversation on the top to access the settings.
 
 .. image:: images/open-settings.png
-    :width: 400px
+    :width: 500px
 
 Here you can configure the description, guest access, if the conversation is visible to others on the server and more.
 
@@ -438,7 +438,7 @@ You can access your settings and choose a different webcam, microphone and other
 From media settings dialog, you can also change the background of your video.
 
 .. image:: images/background-settings-in-call.png
-    :width: 400px
+    :width: 500px
 
 All these settings are also available as direct actions in the bottom bar.
 
@@ -515,7 +515,7 @@ You can choose between classic list or message bubbles, with your own messages o
 You can change both settings from the ``Talk settings`` dialog  in ``Appearance`` section.
 
 .. image:: images/talk-appearance-settings.png
-   :width: 500px
+   :width: 600px
 
 
 Messages search in a conversation
@@ -537,12 +537,12 @@ Threaded messages
 You can create threads in conversations to keep discussions organized. The thread creation option is available in the new message additional actions.
 
 .. image:: images/thread-create-action.png
-   :width: 500px
+   :width: 400px
 
 Then, you can add a title and description for the thread and start the discussion.
 
 .. image:: images/thread-example.png
-   :width: 500px
+   :width: 600px
 
 You can view all replies in a thread either from the replies button on the message or from ``Shared items`` tab in the content sidebar.