really fix fullscreen and fix some issues in chat

view/theme/redbasic/css/style.css

@@ -1364,11 +1364,18 @@ img.mail-conv-sender-photo {
 	word-wrap: break-word;
 }
 
-main.fullscreen .generic-content-wrapper {
-	position: fixed;
-	top: 0px;
+main.fullscreen {
 	left: 0px;
 	width: 100%;
+	height: 100vh;
+	max-width: none;
+}
+
+main.fullscreen .generic-content-wrapper {
+	position: absolute;
+	width: 100%;
+	top: 0px;
+	left: 0px;
 	border-radius: 0px;
 	border-width: 0px;
 }

view/theme/redbasic/js/redbasic.js

@@ -74,7 +74,7 @@ $(document).ready(function() {
 function makeFullScreen(full) {
 	if(typeof full=='undefined' || full == true) {
 		$('main').addClass('fullscreen');
-		$('header, nav, aside, #fullscreen-btn').hide();
+		$('header, nav, aside, #fullscreen-btn').attr('style','display:none !important');;
 		$('#inline-btn').show();
 	}
 	else {