chore(crowdsourcing): 删除导言标题，确保版式统一

Author: MingcongBai

src/pages/crowdsourcing/CrowdsourcingIndex.vue

@@ -63,7 +63,7 @@ const catalog = Object.entries(csArticleTitles).map(([path, title]) => {
     <ul class="list-disc px-16 py-6">
       <li
         v-for="item in catalog.toSorted(
-          (a, b) => Date.parse(a.date) - Date.parse(b.date)
+          (a, b) => Date.parse(b.date) - Date.parse(a.date)
         )"
         :key="item.slug"
         class="flex justify-between">

src/pages/crowdsourcing/articles/anan-tongtong-sticker-pack.md

@@ -4,8 +4,6 @@ draft: false
 date: 2024-06-01
 ---
 
-## Rationale
-
 We have commissioned a sticker pack from [五十根炸虾](https://www.mihuashi.com/profiles/571437) to help promote our community mascots. These stickers will be available as chat stickers and used as (parts of) our souvenirs and merchandises.
 
 ## Budget

src/pages/crowdsourcing/articles/anan-tongtong-sticker-pack.zh.md

@@ -4,8 +4,6 @@ draft: false
 date: 2024-06-01
 ---
 
-## 导言
-
 为宣传我社吉祥物及文化，我们委托画师[五十根炸虾](https://www.mihuashi.com/profiles/571437)设计了一套以安安同同为主角的贴图包。该贴图包将用作各即时通讯平台的表情包及用于社区的各类纪念品及商品。
 
 ## 预算计划

src/pages/crowdsourcing/articles/aoscc-2021-sticker-set.md

@@ -5,8 +5,6 @@ date: 2021-12-01
 
 This is a proposal to crowdsource the necessary funds to print the AOSCC 2021 Sticker Set.
 
-## Rationale
-
 Per community tradition, we have created a new sticker set that includes community logos, memes, and mascots - a set of three pages.
 
 Due to material change (from paper to PVC to improve quality and durability) and supply chain issues, the price to print this year's community sticker set rised significantly. Stickers will be distributed free-of-cost by request, recipients will pay postage.

src/pages/crowdsourcing/articles/aoscc-2021-sticker-set.zh.md

@@ -5,8 +5,6 @@ date: 2021-12-01
 
 本文为众筹印刷 AOSCC 2021 贴纸集相关费用的计划书。
 
-## 导言
-
 遵照社区传统，我们今年制作了一组包含社区 Logo、梗及吉祥物形象的贴纸集，共三页。
 
 由于今年的贴纸材质有变（从纸质改为 PVC 以改善质量和耐久度），且存在供应链问题，今年的贴纸集印刷费用显著提高，故在此筹集资金。资金筹齐后，贴纸集将按需免费分发，收件人付运费。

src/pages/crowdsourcing/articles/aoscc-2023-funds.md

@@ -4,8 +4,6 @@ draft: false
 date: 2023-07-05
 ---
 
-## Rationale
-
 After four long years, AOSCC 2023 is finally returning in-person. To procure souvenirs and lucky draw items, community contributors have or will spend private funds. This crowdsourcing campaign aims to reimburse these spendings.
 
 ## Budget

src/pages/crowdsourcing/articles/aoscc-2023-funds.zh.md

@@ -4,8 +4,6 @@ draft: false
 date: 2023-07-05
 ---
 
-## 导言
-
 时隔四年，AOSCC 终于在 2023 年再次转入线下聚会的形式。为准备聚会纪念品和抽奖奖品，社区贡献者们垫付了部分款项。本众筹旨在报销这些款项。
 
 ## 预算计划

src/pages/crowdsourcing/articles/aoscc-2024-funds.md

@@ -4,8 +4,6 @@ draft: false
 date: 2023-07-05
 ---
 
-## Rationale
-
 AOSCC 2024 will be held at Jilin University on July 13 - 14th. To procure souvenirs and other materials, community contributors have spent private funds ahead of time. This crowdsourcing campaign aims to reimburse these spendings.
 
 This crowdsourcing campaign reimburses items that were already purchased with concrete quotes. We are yet to finalise the budgets on printed goods, trash bags, etc. As we finalise budgets on those items, we will launch a second wave to reimburse the rest of the spendings.

src/pages/crowdsourcing/articles/aoscc-2024-funds.zh.md

@@ -4,8 +4,6 @@ draft: false
 date: 2023-07-05
 ---
 
-## 导言
-
 AOSCC 2024 线下聚会将于 7 月 13 - 14 日在吉林大学举办。为准备聚会用纪念品及会务材料，社区贡献者们垫付了部分款项。本众筹旨在报销这些款项。
 
 本众筹报告报销当前已确定金额的款项，目前仍有部分款项尚未确定具体架构且待众筹。我们将在剩余款项确认后发起第二轮会务款项众筹。

src/pages/crowdsourcing/articles/buildbot-upgrades-20231031.md

@@ -4,8 +4,6 @@ draft: false
 date: 2023-10-30
 ---
 
-## Rationale
-
 This crowdsourcing campaign aims to upgrade two of our build servers, "kp920" (AArch64, 24426) and "Stomatapoda" (LoongArch, 27863), to alleviate each of their performance constraints. 
 
 - The scratch disk (buildroots) on kp920 was powered by a mechanical SAS drive, which significantly dragged out Ciel's intensive I/O operations - such as system upgrades and dependency installation. We would like to purchase a SAS SSD for this machine.