feat: update Talk guest screenshots for v30

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

user_manual/talk/join_a_call_or_chat_as_guest.rst

@@ -12,14 +12,17 @@ Joining a chat
 If you received a link to a chat conversation, you can open it in your browser to join the chat. Here, you will be prompted to enter your name before joining.
 
 .. image:: images/guest-view.png
+    :width: 400px
 
 You can also change your name later by clicking the ``Edit`` button, located top-right.
 
 .. image:: images/change-name.png
+    :width: 400px
 
 Your camera and microphone settings can be found in the ``Settings`` menu. There you can also find a list of shortcuts you can use.
 
 .. image:: images/guest-settings.png
+    :width: 600px
 
 Joining a call
 --------------
@@ -27,15 +30,17 @@ Joining a call
 You can start a call any time with the ``Start call`` button. Other participants will get notified and can join the call. If somebody else has started a call already, the button will change in a green ``Join call`` button.
 
 .. image:: images/join-call.png
+    :width: 600px
 
 Before actually joining the call you will see a device check, where you can pick the right camera and microphone, enable background blur or even join with any devices.
 
 .. image:: images/device-settings-before-call.png
-    :width: 300px
+    :width: 400px
 
 During a call, you can find the Camera and Microphone settings in the ``...`` menu in the top bar.
 
-.. image:: images/call-menu.png
+.. image:: images/guest-call-menu.png
+    :width: 300px
 
 During a call, you can mute your microphone and disable your video with the buttons in the top-right, or using the shortcuts ``M`` to mute audio and ``V`` to disable video. You can also use the ``space bar`` to toggle mute. When you are muted, pressing space will unmute you so you can speak until you let go of the space bar. If you are unmuted, pressing space will mute you until you let go.
 
@@ -52,3 +57,4 @@ More settings
 In the conversation menu you can choose to go full-screen. You can also do this by using the ``F`` key on your keyboard. In the conversation settings, you can find notification options and the full conversation description.
 
 .. image:: images/guest-room-menu.png
+    :width: 500px