Tweak default crash handler message in exported projects

When an exported project crashes, the crash handler message
shouldn't reference the Godot issue tracker, as not all crashes
are Godot's fault.

Reporting crashes that only occur on exported projects is still allowed,
but it should not be done by people who aren't working on the project
in question.

(cherry picked from commit c850ccb7c084e84b536c6fa5f0c667ed49c27cf4)

doc/classes/ProjectSettings.xml

@@ -402,8 +402,11 @@
 		<member name="debug/gdscript/warnings/void_assignment" type="bool" setter="" getter="" default="true">
 			If [code]true[/code], enables warnings when assigning the result of a function that returns [code]void[/code] to a variable.
 		</member>
-		<member name="debug/settings/crash_handler/message" type="String" setter="" getter="" default="&quot;Please include this when reporting the bug on https://github.com/godotengine/godot/issues&quot;">
-			Message to be displayed before the backtrace when the engine crashes.
+		<member name="debug/settings/crash_handler/message" type="String" setter="" getter="" default="&quot;Please include this when reporting the bug to the project developer.&quot;">
+			Message to be displayed before the backtrace when the engine crashes. By default, this message is only used in exported projects due to the editor-only override applied to this setting.
+		</member>
+		<member name="debug/settings/crash_handler/message.editor" type="String" setter="" getter="" default="&quot;Please include this when reporting the bug on: https://github.com/godotengine/godot/issues&quot;">
+			Editor-only override for [member debug/settings/crash_handler/message]. Does not affect exported projects in debug or release mode.
 		</member>
 		<member name="debug/settings/fps/force_fps" type="int" setter="" getter="" default="0">
 			Maximum number of frames per second allowed. The actual number of frames per second may still be below this value if the game is lagging. See also [member physics/common/physics_fps].

main/main.cpp

@@ -411,7 +411,10 @@ Error Main::setup(const char *execpath, int argc, char *argv[], bool p_second_ph
 	ClassDB::register_class<Performance>();
 	engine->add_singleton(Engine::Singleton("Performance", performance));
 
-	GLOBAL_DEF("debug/settings/crash_handler/message", String("Please include this when reporting the bug on https://github.com/godotengine/godot/issues"));
+	GLOBAL_DEF("debug/settings/crash_handler/message",
+			String("Please include this when reporting the bug to the project developer."));
+	GLOBAL_DEF("debug/settings/crash_handler/message.editor",
+			String("Please include this when reporting the bug on: https://github.com/godotengine/godot/issues"));
 
 	MAIN_PRINT("Main: Parse CMDLine");