Replace stardict-gtk.desktop with stardict.desktop.

menu/applications/stardict-gtk.desktop

-[Desktop Entry]
-Name=StarDict GTK version
-Name[cs]=StarDict GTK
-Name[de]=StarDict GTK
-Name[hr]=StarDict GTK
-Name[hu]=StarDict GTK
-Name[ku]=StarDict GTK
-Name[mk]=StarDict GTK
-Name[nl]=StarDict GTK
-Name[ru]=Словарь StarDict
-Name[sk]=StarDict GTK
-Name[tt]=StarDict GTK
-Name[uk]=Зоряний словник :: StarDict GTK
-Name[vi]=StarDict GTK
-Name[zh_CN]=星际译王 GTK
-Name[zh_TW]=星際譯王 GTK
-Comment=Lookup words
-Exec=stardict-gtk
-TryExec=stardict-gtk
-Terminal=false
-Type=Application
-Icon=stardict
-StartupNotify=true
-Categories=GTK;Office;TextTools;Dictionary;
-X-GNOME-DocPath=stardict/stardict.xml

menu/applications/stardict.desktop

+[Desktop Entry]
+Name=StarDict
+Name[ar]=StarDict
+Name[be]=StarDict
+Name[cs]=StarDict
+Name[de]=StarDict
+Name[es]=StarDict
+Name[fr]=StarDict
+Name[ga]=StarDict
+Name[hr]=StarDict
+Name[hu]=StarDict
+Name[kk]=StarDict
+Name[ku]=StarDict
+Name[lt]=StarDict
+Name[mk]=StarDict
+Name[nl]=StarDict
+Name[pt_BR]=StarDict
+Name[ru]=Словарь StarDict
+Name[sk]=StarDict
+Name[sv]=StarDict
+Name[tr]=Stardict
+Name[tt]=StarDict
+Name[uk]=Зоряний словник :: StarDict
+Name[vi]=StarDict
+Name[zh_CN]=星际译王
+Name[zh_TW]=星際譯王
+Comment=Lookup words
+Comment[ar]=البحث عن الكلمات
+Comment[be]=Пошук словаў
+Comment[cs]=Slovník s pokročilými funkcemi
+Comment[de]=Wörter nachschlagen
+Comment[es]=Buscar palabras
+Comment[fr]=Recherche de mots
+Comment[ga]=Déan cuardach ar fhocail
+Comment[hr]=Pogledaj  riječi
+Comment[hu]=Szavak keresése
+Comment[kk]=Сөздерді іздеу
+Comment[lt]=Žodžių paieška
+Comment[mk]=Барај зборови
+Comment[nl]=Woorden opzoeken
+Comment[pt_BR]=Procure palavras
+Comment[ru]=Поиск слова
+Comment[sk]=Vyhľadávané slová
+Comment[sv]=Slå upp ord
+Comment[tr]=Kelime arama
+Comment[tt]=Süzlär küzläp toru
+Comment[uk]=Шукати слова
+Comment[vi]=Tra từ
+Comment[zh_CN]=查询单词
+Comment[zh_TW]=查詢單字
+Exec=stardict
+Terminal=false
+Type=Application
+Icon=stardict
+StartupNotify=true
+Categories=GTK;GNOME;Office;TextTools;Dictionary;
+X-GNOME-DocPath=stardict/stardict.xml