GIT_SILENT Make kwin effects namespace not end with trailing slash

For the static plugins an exact string match is required

src/effectloader.cpp

@@ -195,7 +195,7 @@ void ScriptedEffectLoader::clear()
 PluginEffectLoader::PluginEffectLoader(QObject *parent)
     : AbstractEffectLoader(parent)
     , m_queue(new EffectLoadQueue< PluginEffectLoader, KPluginMetaData>(this))
-    , m_pluginSubDirectory(QStringLiteral("kwin/effects/plugins/"))
+    , m_pluginSubDirectory(QStringLiteral("kwin/effects/plugins"))
 {
 }
 

src/kcmkwin/common/effectsmodel.cpp

@@ -331,7 +331,7 @@ void EffectsModel::loadJavascriptEffects(const KConfigGroup &kwinConfig)
 
 void EffectsModel::loadPluginEffects(const KConfigGroup &kwinConfig)
 {
-    const auto pluginEffects = KPluginMetaData::findPlugins(QStringLiteral("kwin/effects/plugins/"));
+    const auto pluginEffects = KPluginMetaData::findPlugins(QStringLiteral("kwin/effects/plugins"));
     for (const KPluginMetaData &pluginEffect : pluginEffects) {
         if (!pluginEffect.isValid()) {
             continue;