Update translation and add new string

app/src/main/res/values-zh-rCN/strings.xml

@@ -33,4 +33,5 @@
     <string name="size">大小</string>
     <string name="font">字体</string>
     <string name="text">文本</string>
+    <string name="outline_size">描边大小</string>
 </resources>

app/src/main/res/values/strings.xml

@@ -61,4 +61,5 @@
     <string name="size">Size</string>
     <string name="font">Font</string>
     <string name="text">Text</string>
+    <string name="outline_size">Outline size</string>
 </resources>