feat: port config store to pinia

src/views/About.vue

@@ -34,8 +34,9 @@
 <script setup lang="ts">
 import {computed} from 'vue'
 
-import { store } from '@/store'
 import {VERSION as frontendVersion} from '@/version.json'
+import {useConfigStore} from '@/stores/config'
 
-const apiVersion = computed(() => store.state.config.version)
+const configStore = useConfigStore()
+const apiVersion = computed(() => configStore.version)
 </script>