Use dot for Extra videos as well

build/info.json

@@ -38,7 +38,7 @@
 			"URL": "https://www.youtube.com/watch?v=tGLVEq913_4&list=PL846hFPMqg3jwkxcScD1xw2bKXrJVvarc&index=5"
 		},
 		{
-			"ID": "N-Extra1",
+			"ID": "N.Extra1",
 			"Title": "Portainer.io App Template for Raspberry Pi arm/arm64 I Need Your Help!",
 			"Channel": "novaspirit",
 			"URL": "https://www.youtube.com/watch?v=Zn-VELlaIN4&list=PL846hFPMqg3jwkxcScD1xw2bKXrJVvarc&index=6"
@@ -88,7 +88,7 @@
 			"URL": "https://www.youtube.com/watch?v=57Gnp0424Qc&list=PL846hFPMqg3jwkxcScD1xw2bKXrJVvarc&index=13"
 		},
 		{
-			"ID": "N-Extra2",
+			"ID": "N.Extra2",
 			"Title": "3 Huge Announcements!! Discord Giveaway! Pi-Hosted!! & SBC Garage Sale!",
 			"Channel": "novaspirit",
 			"URL": "https://www.youtube.com/watch?v=Ppv1cUomwn0"
@@ -131,7 +131,7 @@
 			"URL": "https://www.youtube.com/watch?v=_tVj0FX5wYg"
 		},
 		{
-			"ID": "N-Extra3",
+			"ID": "N.Extra3",
 			"Title": "Biggest Update to Pi-Hosted Portainer.io Template!",
 			"Channel": "novaspirit",
 			"URL": "https://www.youtube.com/watch?v=7R7l6c3wswQ"