Add missing dev dependency for production build.

package.json

@@ -30,6 +30,7 @@
 		"@phosphor-icons/react": "^2.1.7",
 		"@preact/compat": "^18.3.1",
 		"@preact/preset-vite": "^2.9.2",
+		"@rollup/pluginutils": "^5.1.3",
 		"@types/babel__core": "^7",
 		"@types/node": "^22.7.4",
 		"@types/react": "^18.3.10",

yarn.lock

@@ -583,6 +583,7 @@ __metadata:
     "@phosphor-icons/react": "npm:^2.1.7"
     "@preact/compat": "npm:^18.3.1"
     "@preact/preset-vite": "npm:^2.9.2"
+    "@rollup/pluginutils": "npm:^5.1.3"
     "@types/babel__core": "npm:^7"
     "@types/node": "npm:^22.7.4"
     "@types/react": "npm:^18.3.10"
@@ -794,6 +795,22 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@rollup/pluginutils@npm:^5.1.3":
+  version: 5.1.3
+  resolution: "@rollup/pluginutils@npm:5.1.3"
+  dependencies:
+    "@types/estree": "npm:^1.0.0"
+    estree-walker: "npm:^2.0.2"
+    picomatch: "npm:^4.0.2"
+  peerDependencies:
+    rollup: ^1.20.0||^2.0.0||^3.0.0||^4.0.0
+  peerDependenciesMeta:
+    rollup:
+      optional: true
+  checksum: 10c0/ba46ad588733fb01d184ee3bc7a127d626158bc840b5874a94c129ff62689d12f16f537530709c54da6f3b71f67d705c4e09235b1dc9542e9d47ee8f2d0b8b9e
+  languageName: node
+  linkType: hard
+
 "@rollup/rollup-android-arm-eabi@npm:4.22.5":
   version: 4.22.5
   resolution: "@rollup/rollup-android-arm-eabi@npm:4.22.5"
@@ -2491,6 +2508,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"picomatch@npm:^4.0.2":
+  version: 4.0.2
+  resolution: "picomatch@npm:4.0.2"
+  checksum: 10c0/7c51f3ad2bb42c776f49ebf964c644958158be30d0a510efd5a395e8d49cb5acfed5b82c0c5b365523ce18e6ab85013c9ebe574f60305892ec3fa8eee8304ccc
+  languageName: node
+  linkType: hard
+
 "pify@npm:^4.0.1":
   version: 4.0.1
   resolution: "pify@npm:4.0.1"