Use minimum search length of 1 character for Chinese language

@bramchen I read a (translated) Chinese article about TiddlyWiki over the holidays that mentioned that the first thing for Chinese users to do was to change the minimum search length. Do you think it's useful to bake the setting into the plugin(s)?

languages/zh-Hans/config.tid

@@ -0,0 +1,3 @@
+title: $:/config/
+
+Search/MinLength: 1

languages/zh-Hant/config.tid

@@ -0,0 +1,3 @@
+title: $:/config/
+
+Search/MinLength: 1