Reflect MS Edge's migration of their issue tracker

Refs https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/
Ports 16d7102176 to v3
[skip sauce]

docs/_data/browser-bugs.yml

@@ -14,7 +14,7 @@
   summary: >
     Hovered element still remains in `:hover` state after scrolling away.
   upstream_bug: >
-    IE#926665
+    Edge#7108183
   origin: >
     Bootstrap#14211
 
@@ -24,7 +24,7 @@
   summary: >
     When hovering over a `<select>` menu item, the cursor for the element underneath the menu is displayed.
   upstream_bug: >
-    IE#963961
+    Edge#817822
   origin: >
     Bootstrap#14528
 
@@ -34,7 +34,7 @@
   summary: >
     CSS `border-radius` sometimes causes lines of bleed-through of the `background-color` of the parent element.
   upstream_bug: >
-    IE#1463734
+    Edge#3342037
   origin: >
     Bootstrap#16671
 

docs/_plugins/bugify.rb

@@ -4,6 +4,7 @@ module Jekyll
       upstream_map = {
         "Bootstrap" => "https://github.com/twbs/bootstrap/issues/",
         "IE" => ["https://connect.microsoft.com/IE/feedback/details/", "IE bug"],
+        "Edge" => ["https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/", "Edge issue"],
         "Mozilla" => ["https://bugzilla.mozilla.org/show_bug.cgi?id=", "Mozilla bug"],
         "Chromium" => ["https://bugs.chromium.org/p/chromium/issues/detail?id=", "Chromium issue"],
         "WebKit" => ["https://bugs.webkit.org/show_bug.cgi?id=", "WebKit bug"],