feat(webui): remove early feature warning in book import screen

komga-webui/src/locales/en.json

@@ -57,8 +57,7 @@
       "number": "Number",
       "series": "Series"
     },
-    "title": "Import",
-    "warning_early_feature": "Book Import is still an early feature, and must be used with caution. Make sure your source and destination files are backed up before using the Import feature."
+    "title": "Import"
   },
   "bookreader": {
     "beginning_of_book": "You're at the beginning of the book.",

komga-webui/src/views/BookImport.vue

@@ -1,7 +1,5 @@
 <template>
   <v-container fluid class="pa-6">
-    <v-alert type="warning" text>{{ $t('book_import.warning_early_feature') }}</v-alert>
-
     <v-alert type="info" text class="body-2">
       <div>{{ $t('book_import.info_part1') }}</div>
       <div class="mt-2">{{ $t('book_import.info_part2') }}</div>