call: group call design: Design for group call (which is used for both group call and A/V conferences) has been improved to: - have a working fullscreen button; - have a better display of peer users in grid, with responsive design; - have a nicer design for peer user, and adding avatar/nickname as overlay on the bottom of the video stream; - add a way to (un)pin a peer user, which make is appear on the whole width on top of the grid. rel 448 HG<S-Insert>: changed sat_templates/templates/bulma/call/group_peer.html

.highlight {
    overflow: auto;
}

.box {
    border-radius: 0;
    box-shadow: none;
}

.ticket {
    max-width: none;
}

.xmlui_cont.xmlui_cont_vertical {
    max-width: 780px;
    margin: 0 auto;
}

#tab_patches {
    overflow: auto;
}

#tab_patches header {
    border-top: 1px solid silver;
}

#tab_patches header label {
    font-weight: bold;
}

.commit_msg {
    font-style: italic;
    white-space: pre-wrap;
}

.diff {
    white-space: pre;
}