init; changed lang to DE

LICENSE.md

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+# Licenses of `mailbox`
+
+## License of Codes
+
+    Mailbox: Inbox for items
+    Copyright (c) 2015-2016  kilbith <jeanpatrick.guerrero@gmail.com>
+    Copyright (c) 2016       James Stevenson
+    Copyright (c) 2017-2021  Gabriel Pérez-Cerezo <gabriel@gpcf.eu>
+    Copyright (c) 2024       1F616EMO <root@1f616emo.xyz>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+## License of Textures
+
+The textures are originally licensed under WTFPL, and credits go to Kilbith for creating the original red one, and Gabriel for creating the other two variants and the unrenter texture.
+
+               DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
+                       Version 2, December 2004
+ 
+    Copyright (C) 2004 Sam Hocevar <sam@hocevar.net>
+
+    Everyone is permitted to copy and distribute verbatim or modified
+    copies of this license document, and changing it is allowed as long
+    as the name is changed.
+ 
+               DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
+      TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+     0. You just DO WHAT THE FUCK YOU WANT TO.
+
+However, because [WTFPL is a terrible license](https://content.minetest.net/help/wtfpl/), they are relicensed under CC0 in this fork. To view a copy of the license, visit http://creativecommons.org/publicdomain/zero/1.0.