fix: upgrade flexsearch from 0.7.43 to 0.8.143 (#134)

Snyk has created this PR to upgrade flexsearch from 0.7.43 to 0.8.143.

See this package in npm:
flexsearch

See this project in Snyk:
https://app.snyk.io/org/dargon789/project/a19f499f-38be-44a8-b151-119edbfc95d2?utm_source=github&utm_medium=referral&page=upgrade-pr

Co-authored-by: snyk-bot <[email protected]>

Author: AU_gdev_19

apps/portal/package.json

@@ -32,7 +32,7 @@
     "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.1",
     "date-fns": "4.1.0",
-    "flexsearch": "^0.7.43",
+    "flexsearch": "^0.8.143",
     "github-slugger": "^2.0.0",
     "he": "^1.2.0",
     "lucide-react": "0.487.0",