fix text input color in team chat

www/teams/app-team.less

@@ -42,6 +42,12 @@
                 .cp-app-contacts-container {
                     height: 100%;
                 }
+                .cp-app-contacts-input {
+                    textarea {
+                        border: 0px;
+                        color: white;
+                    }
+                }
             }
             & > .cp-team-drive {
                 display: flex;