fix(l10n): Update translations from Transifex

Signed-off-by: Nextcloud bot <bot@nextcloud.com>

Author: nextcloud-bot

lib/src/main/res/values-sk-rSK/strings.xml

@@ -7,6 +7,7 @@
     -->
     <string name="close">Zatvoriť</string>
 
+    <string name="network_error_title">Chyba siete</string>
     <string name="retry_action">Zopakovať</string>
 
     <string name="unknown_error_title">Neznáma chyba</string>