Translations update from Weblate (#2011)

Co-authored-by: Bruno Arakaki <brn.arakaki@gmail.com>
Co-authored-by: Katarzyna Sobolewska <kasia.sobolewska1@gmail.com>
Co-authored-by: ssantos <ssantos@web.de>
Co-authored-by: aquilesi8 <adamdavies7@protonmail.com>
Co-authored-by: koffevar <egor.kafisov@gmail.com>
Co-authored-by: Nathan <bonnemainsnathan@gmail.com>
Co-authored-by: Yaron Shahrabani <sh.yaron@gmail.com>
Co-authored-by: Oğuz Ersen <oguzersen@protonmail.com>
Co-authored-by: David Ordás <davorpatech@gmail.com>
Co-authored-by: iglv <ilv0609@gmail.com>
Co-authored-by: Kevin Papst <kpapst@gmx.net>

translations/flashmessages.he.xlf

@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version='1.0' encoding='UTF-8'?>
 <xliff xmlns="urn:oasis:names:tc:xliff:document:1.2" version="1.2">
   <file source-language="en" target-language="he" datatype="plaintext" original="flashmessages.en.xlf">
     <header>
@@ -53,6 +53,10 @@
         <source>invoice.first_template</source>
         <target>אנא צור קודם תבנית חשבונית</target>
       </trans-unit>
+      <trans-unit id="action.upload.error">
+        <source>action.upload.error</source>
+        <target>לא ניתן להעלות או לשמור את הקובץ: %reason%</target>
+      </trans-unit>
     </body>
   </file>
 </xliff>