kcms/kwineffects: use new term "Peek at Desktop"

The widget was renamed a while back, but the KCM still used the old
term to refer to it when letting the user choose the visual effect that
it shows the user. Let's change that.

BUG: 463087
FIXED-IN: 5.27

doc/kwineffects/index.docbook

@@ -32,7 +32,7 @@ for Plasma.</para>
 
 <para>The main part of this page is a list of all available effects grouped 
 by <guilabel>Accessibility</guilabel>, <guilabel>Appearance</guilabel>, 
-<guilabel>Focus</guilabel>, <guilabel>Show Desktop Animation</guilabel>, <guilabel>Tools</guilabel>,
+<guilabel>Focus</guilabel>, <guilabel>Peek at Desktop Animation</guilabel>, <guilabel>Tools</guilabel>,
 <guilabel>Virtual Desktop Switching Animation</guilabel>, <guilabel>Window Management</guilabel>,
 and <guilabel>Window Open/Close Animation</guilabel>.</para>
 <para>Use the incremental search bar above the list window to find items in the list.</para>

src/kcms/common/effectsmodel.cpp

@@ -52,7 +52,7 @@ static QString translatedCategory(const QString &category)
         i18nc("Category of Desktop Effects, used as section header", "Accessibility"),
         i18nc("Category of Desktop Effects, used as section header", "Appearance"),
         i18nc("Category of Desktop Effects, used as section header", "Focus"),
-        i18nc("Category of Desktop Effects, used as section header", "Show Desktop Animation"),
+        i18nc("Category of Desktop Effects, used as section header", "Peek at Desktop Animation"),
         i18nc("Category of Desktop Effects, used as section header", "Tools"),
         i18nc("Category of Desktop Effects, used as section header", "Virtual Desktop Switching Animation"),
         i18nc("Category of Desktop Effects, used as section header", "Window Management"),