Fix reversed window blur/focus logic for web (#5590)

src/platforms/rcore_web.c

@@ -1482,8 +1482,8 @@ static void WindowIconifyCallback(GLFWwindow *window, int iconified)
 // GLFW3: Called on windows get/lose focus
 static void WindowFocusCallback(GLFWwindow *window, int focused)
 {
-    if (focused) FLAG_SET(CORE.Window.flags, FLAG_WINDOW_UNFOCUSED);   // The window was focused
-    else FLAG_CLEAR(CORE.Window.flags, FLAG_WINDOW_UNFOCUSED);           // The window lost focus
+    if (focused) FLAG_CLEAR(CORE.Window.flags, FLAG_WINDOW_UNFOCUSED);   // The window was focused
+    else FLAG_SET(CORE.Window.flags, FLAG_WINDOW_UNFOCUSED);           // The window lost focus
 }
 
 // GLFW3: Called on file-drop over the window

src/platforms/rcore_web_emscripten.c

@@ -1321,8 +1321,8 @@ static EM_BOOL EmscriptenFocusCallback(int eventType, const EmscriptenFocusEvent
 
     switch (eventType)
     {
-        case EMSCRIPTEN_EVENT_BLUR: FLAG_CLEAR(CORE.Window.flags, FLAG_WINDOW_UNFOCUSED); break; // The canvas lost focus
-        case EMSCRIPTEN_EVENT_FOCUS: FLAG_SET(CORE.Window.flags, FLAG_WINDOW_UNFOCUSED); break;
+        case EMSCRIPTEN_EVENT_BLUR: FLAG_SET(CORE.Window.flags, FLAG_WINDOW_UNFOCUSED); break; // The canvas lost focus
+        case EMSCRIPTEN_EVENT_FOCUS: FLAG_CLEAR(CORE.Window.flags, FLAG_WINDOW_UNFOCUSED); break;
         default: consumed = 0; break;
     }