Add Wall of Browser Bugs entry for #17497

https://bugs.webkit.org/show_bug.cgi?id=153224
Closes #17497

docs/_data/browser-bugs.yml

@@ -320,6 +320,16 @@
   origin: >
     Bootstrap#18859
 
+-
+  browser: >
+    Safari (iOS)
+  summary: >
+    Tapping into an `<input>` within a `position:fixed` element scrolls to the top of the page
+  upstream_bug: >
+    WebKit#153224
+  origin: >
+    Bootstrap#17497
+
 -
   browser: >
     Safari (iPad Pro)