Add more information about problem with texture in the exception (nap…

…ari#6642)

# Description

After 0.4.19 release, I started getting exceptions on windows CI and
noticed that exception message is not very useful. This PR is improving
it.

napari/_vispy/layers/image.py

@@ -64,7 +64,13 @@ def get_node(
             # it is a bug to hit this error — it is here to catch bugs
             # early when we are creating the wrong nodes or
             # textures for our data
-            raise ValueError("dtype does not match texture_format")
+            raise ValueError(
+                trans._(
+                    "dtype {dtype} does not match texture_format={texture_format}",
+                    dtype=dtype,
+                    texture_format=res.texture_format,
+                )
+            )
         return res