kwinrules: Change singal name to better match its meaning

kcmkwin/kwinrules/package/contents/ui/RulesEditor.qml

@@ -94,7 +94,6 @@ ScrollViewKCM {
             text: i18n("Detect Window Properties")
             icon.name: "edit-find"
             onClicked: {
-                overlayModel.onlySuggestions = true;
                 rulesModel.detectWindowProperties(delaySpin.value);
             }
         }
@@ -113,7 +112,8 @@ ScrollViewKCM {
 
     Connections {
         target: rulesModel
-        function onSuggestionsChanged() {
+        function onShowSuggestions() {
+            overlayModel.onlySuggestions = true;
             propertySheet.sheetOpen = true;
         }
     }

kcmkwin/kwinrules/rulesmodel.cpp

@@ -833,7 +833,7 @@ void RulesModel::selectX11Window()
                 }
                 const QVariantMap windowInfo = reply.value();
                 setSuggestedProperties(windowInfo);
-                emit suggestionsChanged();
+                emit showSuggestions();
             }
     );
 }

kcmkwin/kwinrules/rulesmodel.h

@@ -83,7 +83,7 @@ public slots:
 signals:
     void descriptionChanged();
     void warningMessageChanged();
-    void suggestionsChanged();
+    void showSuggestions();
 
     void virtualDesktopsUpdated();