docs: update links to unhead sources

Author: danielroe

docs/1.getting-started/5.seo-meta.md

@@ -120,7 +120,7 @@ interface MetaObject {
 }
 ```
 
-See [@unhead/schema](https://github.com/unjs/unhead/blob/main/packages/schema/src/schema.ts) for more detailed types.
+See [@unhead/vue](https://github.com/unjs/unhead/blob/main/packages/vue/src/types/schema.ts) for more detailed types.
 
 ## Features
 

docs/3.api/2.composables/use-head-safe.md

@@ -51,4 +51,4 @@ export default {
 }
 ```
 
-See [@unhead/schema](https://github.com/unjs/unhead/blob/main/packages/schema/src/safeSchema.ts) for more detailed types.
+See [@unhead/vue](https://github.com/unjs/unhead/blob/main/packages/vue/src/types/safeSchema.ts) for more detailed types.

docs/3.api/2.composables/use-head.md

@@ -35,7 +35,7 @@ interface MetaObject {
 }
 ```
 
-See [@unhead/schema](https://github.com/unjs/unhead/blob/main/packages/schema/src/schema.ts) for more detailed types.
+See [@unhead/vue](https://github.com/unjs/unhead/blob/main/packages/vue/src/types/schema.ts) for more detailed types.
 
 ::note
 The properties of `useHead` can be dynamic, accepting `ref`, `computed` and `reactive` properties. `meta` parameter can also accept a function returning an object to make the entire object reactive.