Translations update from Weblate (#2474)

Co-authored-by: J. Lavoie <j.lavoie@net-c.ca>
Co-authored-by: phlostically <phlostically@mailinator.com>
Co-authored-by: Oğuz Ersen <oguzersen@protonmail.com>
Co-authored-by: Bogi Napoleon Wennerstrøm <bogi.wennerstrom@gmail.com>
Co-authored-by: Martin Didriksen <martindidriksen@hotmail.com>
Co-authored-by: Christian Eichert <c@zp1.net>
Co-authored-by: Gontzal Manuel Pujana Onaindia <thadahdenyse@gmail.com>
Co-authored-by: DJScias <djscias@gmail.com>
Co-authored-by: Bruno Oliveira Rosa <brunokauaoliveira@gmail.com>
Co-authored-by: Mohammad Firuzabadi <mohmmad.fi@gmail.com>
Co-authored-by: Kevin Papst <kpapst@gmx.net>

translations/messages.ja.xlf

@@ -250,7 +250,7 @@
       </trans-unit>
       <trans-unit id="label.email">
         <source>label.email</source>
-        <target>Email</target>
+        <target>電子メール</target>
       </trans-unit>
       <trans-unit id="label.create_more">
         <source>label.create_more</source>