improve data on author_handle.json files

Updated URLs, Email addresses, GitHub handles,
Mastodon handles, and locations of various IOCCC winning authors.

author/Jetro_Lauha.json

@@ -6,8 +6,8 @@
     "sort_word" : "lauha",
     "location_code" : "FI",
     "location_name" : "Finland",
-    "email" : null,
-    "url" : "http://jet.ro",
+    "email" : "Jetro+www@iki.fi",
+    "url" : "https://jet.ro",
     "alt_url" : null,
     "deprecated_twitter_handle" : null,
     "mastodon" : null,