Add native title tooltip IE11/Edge bug to wall of browser bugs

Author: patrickhlauke

docs/_data/browser-bugs.yml

@@ -1,3 +1,13 @@
+-
+  browser: >
+    Internet Explorer 11 & Microsoft Edge
+  summary: >
+    Native browser tooltip for `title` shows on first keyboard focus (in addition to custom tooltip component)
+  upstream_bug: >
+    IE#2445370
+  origin: >
+    Bootstrap#18692
+
 -
   browser: >
     Internet Explorer 11 & Microsoft Edge