优化

app/src/main/res/xml/pref_config_other.xml

@@ -61,6 +61,10 @@
             android:summary="@string/book_tree_uri_s"
             android:title="@string/book_tree_uri_t" />
 
+        <io.legado.app.lib.prefs.Preference
+            android:key="sourceEditMaxLine"
+            android:title="@string/source_edit_text_max_line" />
+
         <io.legado.app.lib.prefs.Preference
             android:key="checkSource"
             android:title="@string/check_source_config" />