[libadwaita] Add Serbian translation

[Translations User D-L <translations src gnome org>]

commit 63d2d673fcf7eb390f7d525c721048639175d044
Author: Мирослав Николић <miroslavnikolic rocketmail com>
Date:   Sat Sep 18 11:56:54 2021 +0000

    Add Serbian translation

 po/LINGUAS |  1 +
 po/sr.po   | 38 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 39 insertions(+)
---
diff --git a/po/LINGUAS b/po/LINGUAS
index 0bc8d1f1..8d1101ce 100644
--- a/po/LINGUAS
+++ b/po/LINGUAS
@@ -19,6 +19,7 @@ pt
 pt_BR
 ro
 sl
+sr
 sv
 tr
 uk
diff --git a/po/sr.po b/po/sr.po
new file mode 100644
index 00000000..7c908b3b
--- /dev/null
+++ b/po/sr.po
@@ -0,0 +1,38 @@
+# Serbian translation for libadwaita.
+# Copyright © 2021 libadwaita's COPYRIGHT HOLDER
+# This file is distributed under the same license as the libadwaita package.
+# Мирослав Николић <miroslavnikolic rocketmail com>, 2021.
+msgid ""
+msgstr ""
+"Project-Id-Version: libadwaita main\n"
+"Report-Msgid-Bugs-To: https://gitlab.gnome.org/GNOME/libadwaita/issues\n";
+"POT-Creation-Date: 2021-09-16 10:29+0000\n"
+"PO-Revision-Date: 2021-09-18 13:54+0200\n"
+"Last-Translator: Мирослав Николић <miroslavnikolic rocketmail com>\n"
+"Language-Team: српски <gnome-sr googlegroups org>\n"
+"Language: sr\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Plural-Forms: nplurals=4; plural=n==1? 3 : n%10==1 && n%100!=11 ? 0 : n"
+"%10>=2 && n%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2;\n"
+
+#: src/adw-preferences-window.c:210
+msgid "Untitled page"
+msgstr "Неименована страница"
+
+#: src/adw-preferences-window.ui:8
+msgid "Preferences"
+msgstr "Поставке"
+
+#: src/adw-preferences-window.ui:68
+msgid "Search"
+msgstr "Тражи"
+
+#: src/adw-preferences-window.ui:146
+msgid "No Results Found"
+msgstr "Нисам пронашао резултате"
+
+#: src/adw-preferences-window.ui:147
+msgid "Try a different search."
+msgstr "Покушајте другачију претрагу."