core: Stop double-resizing on Fit Canvas to Layers

Resolves #16018
This patch extends a2c5d70c to also apply to the
"Fit Canvas to Layers" action. It prevents the non-rasterized
vector layer from being shifted out of place when the
canvas is resized.

app/core/gimpimage-resize.c

@@ -42,6 +42,8 @@
 
 #include "text/gimptextlayer.h"
 
+#include "path/gimpvectorlayer.h"
+
 #include "gimp-intl.h"
 
 
@@ -115,6 +117,9 @@ gimp_image_resize_with_layers (GimpImage    *image,
     {
       GimpItem *item = list->data;
 
+      if (gimp_item_is_vector_layer (item))
+        continue;
+
       gimp_item_translate (item, offset_x, offset_y, TRUE);
     }