Rename directory for traditional Chinese translation.

briar-android/.tx/config

 [main]
 host = https://www.transifex.com
-lang_map = pt_BR: pt-rBR, nb_NO: nb, zh-Hans: zh-rCN
+lang_map = pt_BR: pt-rBR, nb_NO: nb, zh-Hans: zh-rCN, zh-Hant: zh-rTW
 
 [briar.stringsxml-5]
 file_filter = src/main/res/values-<lang>/strings.xml

briar-android/src/main/res/values-zh-Hant/strings.xml → briar-android/src/main/res/values-zh-rTW/strings.xml

 <?xml version='1.0' encoding='UTF-8'?>
-<resources xmlns:tools="http://schemas.android.com/tools">
+<resources>
   <!--Setup-->
   <string name="setup_title">歡迎來到 Briar</string>
   <string name="setup_name_explanation">您的暱稱將顯示在您發佈的任何內容旁。暱稱在創建帳戶後將無法更改。</string>

briar-android/src/main/res/values/arrays.xml

@@ -62,7 +62,7 @@
 		<item>tr</item>
 		<item>uk</item>
 		<item>zh-CN</item>
-		<item>zh-Hant</item>
+		<item>zh-TW</item>
 	</string-array>
 	<string-array name="pref_theme_entries">
 		<item>@string/pref_theme_light</item>