fix: vue-seo-layer as a peer dependency

pnpm refuses a git dependency inside another package by default
(blockExoticSubdeps), so an app could not install v0.5.0. vue-seo-layer
is now a peer dependency (^0.2.0) and a development dependency pinned
to v0.2.0; apps list vue-seo-layer#v0.2.0 next to the layer.

package.json

@@ -1,6 +1,6 @@
 {
   "name": "vue-menu-layer",
-  "version": "0.5.0",
+  "version": "0.5.1",
   "private": true,
   "type": "module",
   "main": "./nuxt.config.ts",
@@ -14,15 +14,14 @@
   "engines": {
     "node": ">=22.18"
   },
-  "dependencies": {
-    "vue-seo-layer": "git+https://git.golem15.com/golem15/vue-seo-layer.git#v0.2.0"
-  },
   "peerDependencies": {
-    "nuxt": "4.4.8"
+    "nuxt": "4.4.8",
+    "vue-seo-layer": "^0.2.0"
   },
   "devDependencies": {
     "nuxt": "4.4.8",
     "typescript": "5.9.3",
-    "vue": "3.5.35"
+    "vue": "3.5.35",
+    "vue-seo-layer": "git+https://git.golem15.com/golem15/vue-seo-layer.git#v0.2.0"
   }
 }