Fix widescreen scaling for Oceff_Wipe effect

- Correctly calculate aspect ratio using viewport dimensions
- Adjust Matrix_Scale to account for widescreen aspect ratio

soh/src/overlays/actors/ovl_Oceff_Wipe/z_oceff_wipe.c

@@ -106,7 +106,9 @@ void OceffWipe_Draw(Actor* thisx, PlayState* play) {
     Gfx_SetupDL_25Xlu(play->state.gfxCtx);
 
     Matrix_Translate(eye.x + vec.x, eye.y + vec.y, eye.z + vec.z, MTXMODE_NEW);
-    Matrix_Scale(0.1f, 0.1f, 0.1f, MTXMODE_APPLY);
+    float aspectRatio = (float)(play->view.viewport.rightX - play->view.viewport.leftX) / 
+                        (float)(play->view.viewport.bottomY - play->view.viewport.topY);
+    Matrix_Scale(0.1f * aspectRatio, 0.1f, 0.1f, MTXMODE_APPLY);
     Matrix_ReplaceRotation(&play->billboardMtxF);
     Matrix_Translate(0.0f, 0.0f, -z, MTXMODE_APPLY);