emscripten: Add JS library dependencies using EM_JS_DEPS macro

See https://github.com/emscripten-core/emscripten/pull/19780

(cherry picked from commit 042243471fb7ecf6ba5e53f0ba35e825a8bb066a)

src/audio/emscripten/SDL_emscriptenaudio.c

@@ -196,6 +196,9 @@ static void EMSCRIPTENAUDIO_CloseDevice(SDL_AudioDevice *_this)
 #endif
 }
 
+
+EM_JS_DEPS(sdlaudio, "$autoResumeAudioContext,$dynCall");
+
 static int EMSCRIPTENAUDIO_OpenDevice(SDL_AudioDevice *_this, const char *devname)
 {
     SDL_AudioFormat test_format;

src/misc/emscripten/SDL_sysurl.c

@@ -24,12 +24,10 @@
 
 #include <emscripten/emscripten.h>
 
+EM_JS_DEPS(sdlsysurl, "$UTF8ToString");
+
 int SDL_SYS_OpenURL(const char *url)
 {
-    EM_ASM({
-        window.open(UTF8ToString($0), "_blank");
-    },
-           url);
-
+    EM_ASM(window.open(UTF8ToString($0), "_blank"), url);
     return 0;
 }

src/video/emscripten/SDL_emscriptenmouse.c

@@ -60,6 +60,8 @@ static SDL_Cursor *Emscripten_CreateDefaultCursor()
     return Emscripten_CreateCursorFromString("default", SDL_FALSE);
 }
 
+EM_JS_DEPS(sdlmouse, "$stringToUTF8,$UTF8ToString");
+
 static SDL_Cursor *Emscripten_CreateCursor(SDL_Surface *surface, int hot_x, int hot_y)
 {
     const char *cursor_url = NULL;