Add ignore = untracked, as in the previous .gitmodules from BiscuIT-ng

.gitmodules

@@ -2,35 +2,44 @@
 	path = apps/official/AlekSIS-App-Alsijil
 	url = https://edugit.org/AlekSIS/AlekSIS-App-Alsijil
 	branch = master
+	ignore = untracked
 [submodule "apps/official/AlekSIS-App-Chronos"]
 	path = apps/official/AlekSIS-App-Chronos
 	url = https://edugit.org/AlekSIS/AlekSIS-App-Chronos
 	branch = master
+	ignore = untracked
 [submodule "apps/official/AlekSIS-App-Exlibris"]
 	path = apps/official/AlekSIS-App-Exlibris
 	url = https://edugit.org/AlekSIS/AlekSIS-App-Exlibris
 	branch = master
+	ignore = untracked
 [submodule "apps/official/AlekSIS-App-FiBu"]
 	path = apps/official/AlekSIS-App-FiBu
 	url = https://edugit.org/AlekSIS/AlekSIS-App-FiBu
 	branch = master
+	ignore = untracked
 [submodule "apps/official/AlekSIS-App-Hjelp"]
 	path = apps/official/AlekSIS-App-Hjelp
 	url = https://edugit.org/AlekSIS/AlekSIS-App-Hjelp
 	branch = master
+	ignore = untracked
 [submodule "apps/official/AlekSIS-App-Kopo"]
 	path = apps/official/AlekSIS-App-Kopo
 	url = https://edugit.org/AlekSIS/AlekSIS-App-Kopo
 	branch = master
+	ignore = untracked
 [submodule "apps/official/AlekSIS-App-SchILD-NRW"]
 	path = apps/official/AlekSIS-App-SchILD-NRW
 	url = https://edugit.org/AlekSIS/AlekSIS-App-SchILD-NRW
 	branch = master
+	ignore = untracked
 [submodule "apps/official/AlekSIS-App-Untis"]
 	path = apps/official/AlekSIS-App-Untis
 	url = https://edugit.org/AlekSIS/AlekSIS-App-Untis
 	branch = master
+	ignore = untracked
 [submodule "apps/official/AlekSIS-App-mensa"]
 	path = apps/official/AlekSIS-App-mensa
 	url = https://edugit.org/AlekSIS/AlekSIS-App-mensa
 	branch = master
+	ignore = untracked