Add support for Anonymous Overflow

A Stack Overflow frontend, see:
https://github.com/httpjamesm/AnonymousOverflow

lib/farside.ex

@@ -20,6 +20,7 @@ defmodule Farside do
   @quora_regex ~r/quora.com|quetre/
   @gsearch_regex ~r/google.com\/search|whoogle/
   @fandom_regex ~r/fandom.com|breezewiki/
+  @stackoverflow_regex ~r/stackoverflow.com|anonymousoverflow/
 
   @parent_services %{
     @youtube_regex => ["invidious", "piped"],
@@ -35,7 +36,8 @@ defmodule Farside do
     @imdb_regex => ["libremdb"],
     @quora_regex => ["quetre"],
     @gsearch_regex => ["whoogle"],
-    @fandom_regex => ["breezewiki"]
+    @fandom_regex => ["breezewiki"],
+    @stackoverflow_regex => ["anonymousoverflow"]
   }
 
   def get_services_map do

services-full.json

@@ -559,5 +559,24 @@
       "https://breeze.777.tf",
       "https://breezewiki.esmailelbob.xyz"
     ]
+  },
+  {
+    "type": "anonymousoverflow",
+    "test_url": "/questions/6591213/how-do-i-rename-a-local-git-branch",
+    "fallback": "https://code.whatever.social",
+    "instances": [
+      "https://code.whatever.social",
+	  "https://overflow.777.tf",
+	  "https://ao.vern.cc",
+	  "https://overflow.smnz.de",
+	  "https://anonymousoverflow.esmailelbob.xyz",
+	  "https://overflow.lunar.icu",
+	  "https://overflow.adminforge.de",
+	  "https://ao.foss.wtf",
+	  "https://overflow.hostux.net",
+	  "https://overflow.projectsegfau.lt",
+	  "https://code.xbdm.fun",
+	  "https://overflow.fascinated.cc"
+    ]
   }
 ]

services.json

@@ -516,5 +516,22 @@
       "https://breeze.777.tf",
       "https://breezewiki.esmailelbob.xyz"
     ]
+  },
+  {
+    "type": "anonymousoverflow",
+    "test_url": "/questions/6591213/how-do-i-rename-a-local-git-branch",
+    "fallback": "https://code.whatever.social",
+    "instances": [
+      "https://code.whatever.social",
+      "https://overflow.777.tf",
+      "https://ao.vern.cc",
+      "https://overflow.smnz.de",
+      "https://anonymousoverflow.esmailelbob.xyz",
+      "https://overflow.lunar.icu",
+      "https://overflow.adminforge.de",
+      "https://ao.foss.wtf",
+      "https://overflow.hostux.net",
+      "https://overflow.projectsegfau.lt"
+    ]
   }
 ]