Add Arabic translations for ShareExtension

ShareExtension/ar.lpro/Localizable.stringsdict

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+    <key>NFiles</key>
+    <dict>
+        <key>NSStringLocalizedFormatKey</key>
+        <string>%#@files@</string>
+        <key>files</key>
+        <dict>
+            <key>NSStringFormatSpecTypeKey</key>
+            <string>NSStringPluralRuleType</string>
+            <key>NSStringFormatValueTypeKey</key>
+            <string>d</string>
+            <key>one</key>
+            <string>%d ملف</string>
+            <key>other</key>
+            <string>%d ملفات</string>
+        </dict>
+    </dict>
+</dict>
+</plist>

ShareExtension/ar.lpro/ShareViewController.xib

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+/* Class = "NSTextFieldCell"; title = "NearDrop"; ObjectID = "0xp-rC-2gr"; */
+"0xp-rC-2gr.title" = "NearDrop";
+
+/* Class = "NSButtonCell"; title = "Cancel"; ObjectID = "6Up-t3-mwm"; */
+"6Up-t3-mwm.title" = "إلغاء";
+
+/* Class = "NSTextFieldCell"; title = "Looking for devices..."; ObjectID = "NaJ-Wx-Pim"; */
+"NaJ-Wx-Pim.title" = "البحث عن الأجهزة...";
+
+/* Class = "NSTextFieldCell"; title = "If you don't see your device, open \"Google Files\" app and tap \"Receive\" on the Nearby Share tab."; ObjectID = "vla-gF-eJo"; */
+"vla-gF-eJo.title" = "إذا لم تر جهازك، افتح تطبيق \"Google Files\" واضغط على \"استلام\" في علامة التبويب مشاركة قريبة.";