feat(sponsorList): add mobile view and statistics panel

This commit introduces a new mobile-first version of the sponsor list page.

Key features:
- A responsive layout optimized for mobile devices.
- A statistics panel showing total sponsors, contribution amounts, and type distribution.
- Category filtering via a bottom navigation bar.

Additionally, the special sponsor message is now loaded from `sponsorList.json` to centralize data for both desktop and mobile views.

20251115/sponsorList.json

@@ -1,5 +1,6 @@
 {
   "eventTitle": "永平新港汕河体育协会 2 周年庆联欢晚宴",
+  "specialSponsors": "感谢 V World2.0 的特别赞助，现在下载 APP 并进行实名认证即可获得 RM50 的登录奖励！",
   "logos": [{ "imgSrc": "SamHor-HighRes.png" }, { "imgSrc": "关公文化-HighRes.png" }, { "imgSrc": "VWorld2 Logo.png" }],
   "poems": ["汕水流长通四海", "河川万里泽邦家"],
   "sponsorList": [