SDL: Fix Emscripten joystick rumble being swapped

SDL Commits
1 
From 0f1a705fdadff460803828f6c7dd14e50c8f49b3 Mon Sep 17 00:00:00 2001
From: Nintorch <[EMAIL REDACTED]>
Date: Wed, 24 Dec 2025 18:28:42 +0500
Subject: [PATCH] Fix Emscripten joystick rumble being swapped

---
 src/joystick/emscripten/SDL_sysjoystick.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/joystick/emscripten/SDL_sysjoystick.c b/src/joystick/emscripten/SDL_sysjoystick.c
index fc02eb61720b8..dbe16fd77d808 100644
--- a/src/joystick/emscripten/SDL_sysjoystick.c
+++ b/src/joystick/emscripten/SDL_sysjoystick.c
@@ -583,8 +583,8 @@ static bool EMSCRIPTEN_JoystickRumble(SDL_Joystick *joystick, Uint16 low_frequen
         gamepad['vibrationActuator']['playEffect']('dual-rumble', {
             'startDelay': 0,
             'duration': 3000,
-            'weakMagnitude': $1 / 0xFFFF,
-            'strongMagnitude': $2 / 0xFFFF,
+            'weakMagnitude': $2 / 0xFFFF,
+            'strongMagnitude': $1 / 0xFFFF,
         });
         return 1;
         }, item->index, low_frequency_rumble, high_frequency_rumble);