Import translations. DO NOT MERGE

Change-Id: I50629a5e6687f3da5edb27ac30c4ed0db43acd42
Auto-generated-cl: translation import
diff --git a/res/values-zu/strings.xml b/res/values-zu/strings.xml
index fb310c4..43a7e76 100644
--- a/res/values-zu/strings.xml
+++ b/res/values-zu/strings.xml
@@ -43,6 +43,7 @@
     <string name="applied_theme_msg" msgid="7348498271552054431">"Isitayela sifakiwe"</string>
     <string name="apply_theme_error_msg" msgid="791364062636538317">"Kube nenkinga ukufaka isitayela"</string>
     <string name="custom_theme_next" msgid="6235420097213197301">"Okulandelayo"</string>
+    <string name="custom_theme_previous" msgid="4941132112640503022">"Okwangaphambilini"</string>
     <string name="custom_theme_title" msgid="2485536123742716285">"Ngokwezifiso"</string>
     <string name="custom_theme_fragment_title" msgid="6615547284702040280">"Isitayela sangokwezifiso"</string>
     <string name="custom_theme_delete" msgid="4744494663184126202">"Susa"</string>