Bring back xtermjs scrollbar

src/app/components/Terminal/Terminal.css

@@ -95,6 +95,16 @@
   /* On OS X this is required in order for the scroll bar to appear fully opaque */
   background-color: #000;
   overflow-y: scroll;
+  cursor: default;
+  position: absolute;
+  right: 0;
+  left: 0;
+  top: 0;
+  bottom: 0;
+}
+
+.xterm .xterm-screen {
+  position: relative;
 }
 
 .xterm canvas {
@@ -111,18 +121,52 @@
   display: inline-block;
   visibility: hidden;
   position: absolute;
+  top: 0;
   left: -9999em;
+  line-height: normal;
+}
+
+.xterm {
+  cursor: text;
 }
 
 .xterm.enable-mouse-events {
   /* When mouse events are enabled (eg. tmux), revert to the standard pointer cursor */
   cursor: default;
 }
 
-.xterm:not(.enable-mouse-events) {
+.xterm:not.enable-mouse-events {
   cursor: text;
 }
 
+.xterm.xterm-cursor-pointer {
+  cursor: pointer;
+}
+
+.xterm.column-select.focus {
+  /* Column selection mode */
+  cursor: crosshair;
+}
+
+.xterm .xterm-accessibility,
+.xterm .xterm-message {
+  position: absolute;
+  left: 0;
+  top: 0;
+  bottom: 0;
+  right: 0;
+  z-index: 100;
+  color: transparent;
+}
+
+.xterm .live-region {
+  position: absolute;
+  left: -9999px;
+  width: 1px;
+  height: 1px;
+  overflow: hidden;
+}
+
 .terminal-container {
   height: calc(100vh - 112px);
 }