fix(chat): allow system chat messages to fill width. Closes #2998

web/components/chat/ChatSystemMessage/ChatSystemMessage.module.scss

@@ -2,9 +2,9 @@
   background: var(--theme-color-background-main);
   background: linear-gradient(
     70deg,
-    rgb(78, 54, 114) 0%,
+    rgb(87, 51, 141) 0%,
     rgb(65, 28, 139) 40%,
-    rgb(83, 67, 130) 80%
+    rgb(71, 50, 133) 80%
   );
   margin: 5px;
   margin-bottom: 10px;
@@ -12,7 +12,6 @@
   border-width: 1px;
   border-style: solid;
   padding: 12px 12px;
-  max-width: 400px;
 
   .user {
     display: flex;