Examples: Reduce size of some web examples

examples/DeferredShading/xmake.lua

@@ -1,3 +1,7 @@
 target("DeferredShading")
 	add_deps("NazaraGraphics")
 	add_files("main.cpp")
+
+	if is_plat("wasm") then
+		add_ldflags("--preload-file assets/", { force = true })
+	end

examples/Physics2DDemo/xmake.lua

@@ -3,3 +3,7 @@ target("Physics2DDemo")
 	add_packages("entt")
 	add_files("main.cpp")
 	add_defines("NAZARA_ENTT")
+
+	if is_plat("wasm") then
+		add_ldflags("--preload-file assets/", { force = true })
+	end

examples/PhysicsDemo/xmake.lua

@@ -3,3 +3,7 @@ target("PhysicsDemo")
 	add_packages("entt")
 	add_files("main.cpp")
 	add_defines("NAZARA_ENTT")
+
+	if is_plat("wasm") then
+		add_ldflags("--preload-file assets/", { force = true })
+	end

examples/PhysicsPlayground/xmake.lua

@@ -3,3 +3,8 @@ target("PhysicsPlayground")
 	add_packages("entt")
 	add_files("main.cpp")
 	add_defines("NAZARA_ENTT")
+
+	if is_plat("wasm") then
+		add_ldflags("--preload-file assets/examples/dev_grey.png", { force = true })
+		add_ldflags("--preload-file assets/examples/Spaceship", { force = true })
+	end

examples/xmake.lua

@@ -2,10 +2,5 @@ option("examples", { description = "Build examples", default = true })
 
 if has_config("examples") then
 	set_group("Examples")
-
-	if is_plat("wasm") then
-		add_ldflags("--preload-file assets/", { force = true })
-	end
-
 	includes("*/xmake.lua")
 end