l10n: Correct Chinese language codes (#137)

Author: ryonakano

po/LINGUAS

@@ -21,7 +21,7 @@ ko
 nb
 pa
 sk
-zh_Hans
+zh_CN
 sr@latin
 ee
 qu
@@ -153,7 +153,7 @@ ig
 bs
 sw
 ho
-zh_Hant
+zh_TW
 ha
 tk
 ik

po/extra/LINGUAS

@@ -21,7 +21,7 @@ ko
 nb
 pa
 sk
-zh_Hans
+zh_CN
 sr@latin
 ee
 qu
@@ -153,7 +153,7 @@ ig
 bs
 sw
 ho
-zh_Hant
+zh_TW
 ha
 tk
 ik

po/extra/zh_Hans.po renamed to po/extra/zh_CN.po

@@ -12,7 +12,7 @@ msgstr ""
 "Last-Translator: anonymous <[email protected]>\n"
 "Language-Team: Chinese (Simplified Han script) <https://"
 "l10n.elementaryos.org/projects/wingpanel/quick-settings-extra/zh_Hans/>\n"
-"Language: zh_Hans\n"
+"Language: zh_CN\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"

po/extra/zh_Hant.po renamed to po/extra/zh_TW.po

@@ -12,7 +12,7 @@ msgstr ""
 "Last-Translator: Kisaragi Hiu <[email protected]>\n"
 "Language-Team: Chinese (Traditional) <https://l10n.elementary.io/projects/"
 "wingpanel/quick-settings-extra/zh_Hant/>\n"
-"Language: zh_Hant\n"
+"Language: zh_TW\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"

po/zh_Hans.po renamed to po/zh_CN.po

@@ -12,7 +12,7 @@ msgstr ""
 "Last-Translator: JieXu <[email protected]>\n"
 "Language-Team: Chinese (Simplified Han script) <https://"
 "l10n.elementaryos.org/projects/wingpanel/quick-settings/zh_Hans/>\n"
-"Language: zh_Hans\n"
+"Language: zh_CN\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"

po/zh_Hant.po renamed to po/zh_TW.po

@@ -12,7 +12,7 @@ msgstr ""
 "Last-Translator: Kisaragi Hiu <[email protected]>\n"
 "Language-Team: Chinese (Traditional Han script) <https://"
 "l10n.elementaryos.org/projects/wingpanel/quick-settings/zh_Hant/>\n"
-"Language: zh_Hant\n"
+"Language: zh_TW\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"