fix ui package, use sv to create

recreated package using sv, marking correctly as a library. seems I was
missing some sveltekit tooling somewhere along the way otherwise.

.prettierignore

@@ -0,0 +1,6 @@
+# Package Managers
+package-lock.json
+pnpm-lock.yaml
+yarn.lock
+bun.lock
+bun.lockb