css: set better line-height

src/plugins/roomslist/styles/roomsgroups.scss

@@ -24,6 +24,7 @@
                 .open-room {
                     display: flex;
                     flex-direction: row;
+                    line-height: 1.5em;
                     span {
                         padding-top: 0.25em;
                     }