move web server to loopback by default

tests/testresources/core/ahriman.ini

@@ -26,7 +26,7 @@ target =
 target =
 
 [email]
-host = 0.0.0.0
+host = 127.0.0.1
 link_path =
 no_empty_report = no
 port = 587
@@ -54,5 +54,5 @@ region = eu-central-1
 secret_key =
 
 [web]
-host = 0.0.0.0
+host = 127.0.0.1
 templates = ../web/templates