Replace the [tutorial] tag with [scenario]

The title screen's "tutorial" button will use the tag name from game_classification,
as would anything else that calls game_launcher::set_tutorial().

data/campaigns/tutorial/scenarios/01_Tutorial_part_1.cfg

@@ -1,6 +1,6 @@
 #textdomain wesnoth-tutorial
 
-[tutorial]
+[scenario]
     id=tutorial
     # po: Hello, translators! The tutorial is meant to be a bit funny at the start,
     # po: welcoming new players. Please keep the friendly fun feeling!
@@ -1238,4 +1238,4 @@
 
         {CLEAR_PRINT}
     [/event]
-[/tutorial]
+[/scenario]

data/campaigns/tutorial/scenarios/02_Tutorial_part_2.cfg

@@ -1,6 +1,6 @@
 #textdomain wesnoth-tutorial
 
-[tutorial]
+[scenario]
     id=2_Tutorial
     name= _ "Wesnoth Tutorial — Part II"
     map_file=campaigns/tutorial/maps/02_Tutorial_part_2.map
@@ -1305,4 +1305,4 @@ Please report the bug."
         {CLEAR_VARIABLE low_hp_unit_message,lhpu_msg_i}
         {CLEAR_VARIABLE spoke_about_income,spoke_about_orcs_crossing_river}
     [/event]
-[/tutorial]
+[/scenario]

data/schema/core/addons.cfg

@@ -553,11 +553,6 @@
 	super="scenario"
 	{SIMPLE_KEY is_unit_test bool}
 [/tag]
-[tag]
-	name="tutorial"
-	max=infinite
-	super="scenario"
-[/tag]
 [tag]
 	name="multiplayer"
 	max=infinite

src/game_classification.cpp

@@ -80,6 +80,10 @@ std::string game_classification::get_tagname() const
 		return this->campaign.empty() ? "multiplayer" : "scenario";
 	}
 
+	if(this->campaign_type == CAMPAIGN_TYPE::TUTORIAL) {
+		return "scenario";
+	}
+
 	return this->campaign_type.to_string();
 }