Added rule search hint

app/src/main/java/eu/faircode/email/FragmentRules.java

@@ -200,7 +200,7 @@ public class FragmentRules extends FragmentBase {
 
         MenuItem menuSearch = menu.findItem(R.id.menu_search);
         SearchView searchView = (SearchView) menuSearch.getActionView();
-        searchView.setQueryHint(getString(R.string.title_search));
+        searchView.setQueryHint(getString(R.string.title_rules_search_hint));
 
         if (!TextUtils.isEmpty(searching)) {
             menuSearch.expandActionView();

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

@@ -1369,6 +1369,7 @@
     <string name="title_log">Log</string>
     <string name="title_auto_scroll">Auto scroll</string>
     <string name="title_log_clear">Clear</string>
+    <string name="title_rules_search_hint">Search name or condition</string>
     <string name="title_rules_clear">Clear spam rules</string>
     <string name="title_rules_clear_confirm">Delete all rules moving messages to the spam folder?</string>
     <string name="title_debug_info">Debug info</string>