Fix class doc for TileMap navigation visibility mode
Fix class doc for TileMap navigation visibility mode

fix small copy&paste error

sanikoyes/godot,pkowal1982/godot,godotengine/godot,godotengine/godot,BastiaanOlij/godot,sanikoyes/godot,godotengine/godot,BastiaanOlij/godot,godotengine/godot,godotengine/godot,BastiaanOlij/godot,godotengine/godot,pkowal1982/godot,sanikoyes/godot,sanikoyes/godot,pkowal1982/godot,pkowal1982/godot,sanikoyes/godot,pkowal1982/godot,godotengine/godot,BastiaanOlij/godot,godotengine/godot,BastiaanOlij/godot,sanikoyes/godot,pkowal1982/godot,sanikoyes/godot,pkowal1982/godot,BastiaanOlij/godot,BastiaanOlij/godot,BastiaanOlij/godot,pkowal1982/godot,sanikoyes/godot