fix: replace erroneous import.meta.DEV with import.meta.env.DEV in generated code (#15285)

Author: GauBen

.changeset/foo-bar-baz.md

@@ -0,0 +1,5 @@
+---
+@sveltejs/enhanced-img: patch
+---
+
+fix: replace erroneous `import.meta.DEV` with `import.meta.env.DEV` in generated code

packages/enhanced-img/src/vite-plugin.js

@@ -372,7 +372,7 @@ function dynamic_img_to_picture(content, node, src_var_name) {
 	}
 
 	return `{#if typeof ${src_var_name} === 'string'}
-	{#if import.meta.DEV && ${!width_index && !height_index}}
+	{#if import.meta.env.DEV && ${!width_index && !height_index}}
 		{${src_var_name}} was not enhanced. Cannot determine dimensions.
 	{:else}
 		<img ${serialize_img_attributes(content, attributes, {

packages/enhanced-img/test/Output.svelte

@@ -39,7 +39,7 @@
 
 {#if typeof src === 'string'}
 	{#if 
-	import.meta.DEV && false}
+	import.meta.env.DEV && false}
 		{src} was not enhanced. Cannot determine dimensions.
 	{:else}
 		<img src={src} alt="attribute shorthand test" />
@@ -56,7 +56,7 @@
 {#each images as image}
 	{#if typeof image === 'string'}
 	{#if 
-	import.meta.DEV && false}
+	import.meta.env.DEV && false}
 		{image} was not enhanced. Cannot determine dimensions.
 	{:else}
 		<img src={image} alt="opt-in test" />
@@ -74,7 +74,7 @@
 {#each images as _, i}
 	{#if typeof get_image(i) === 'string'}
 	{#if 
-	import.meta.DEV && false}
+	import.meta.env.DEV && false}
 		{get_image(i)} was not enhanced. Cannot determine dimensions.
 	{:else}
 		<img src={get_image(i)} alt="opt-in test" />