[refactor] Add type imports across codebase for verbatim module syntax

- Update all Vue components to use type imports
- Update all TypeScript files to use type imports
- Update test files to use type imports
- Ensure compliance with TypeScript verbatim module syntax

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

src/composables/nodePack/useNodePacks.ts

@@ -1,8 +1,8 @@
 import { get, useAsyncState } from '@vueuse/core'
-import { Ref } from 'vue'
+import { type Ref } from 'vue'
 
 import { useComfyRegistryStore } from '@/stores/comfyRegistryStore'
-import { UseNodePacksOptions } from '@/types/comfyManagerTypes'
+import { type UseNodePacksOptions } from '@/types/comfyManagerTypes'
 
 /**
  * Handles fetching node packs from the registry given a list of node pack IDs