Fix terminal navigation mode focus border order

Fixes microsoft#145725

Author: Tyriar

src/vs/workbench/contrib/terminal/browser/media/terminal.css

@@ -82,13 +82,18 @@
 }
 
 .monaco-workbench .simple-find-part-wrapper {
-	z-index: 32 !important;
+	z-index: 33 !important;
 }
 
 .xterm .xterm-screen {
 	cursor: text;
 }
 
+.xterm .xterm-accessibility {
+	z-index: 32 !important;
+	pointer-events: none;
+}
+
 /* Apply cursor styles to xterm-screen as well due to how .xterm-viewport/.xterm are positioned */
 .xterm.enable-mouse-events .xterm-screen  { cursor: default; }
 .xterm.xterm-cursor-pointer .xterm-screen { cursor: pointer; }
@@ -404,7 +409,7 @@
 	pointer-events: none;
 	opacity: 0; /* hidden initially */
 	transition: left 70ms ease-out, right 70ms ease-out, top 70ms ease-out, bottom 70ms ease-out, opacity 150ms ease-out;
-	z-index: 33;
+	z-index: 34;
 }
 .monaco-workbench .pane-body.integrated-terminal .terminal-group > .monaco-split-view2.horizontal .terminal-drop-overlay.drop-before {
 	right: 50%;