feat: 新增 Stirling-PDF (#839)

apps/stirling-pdf/data.yml

@@ -0,0 +1,20 @@
+name: Stirling-PDF
+tags:
+    - 实用工具
+title: 强大的本地托管基于 Web 的 PDF 操作工具
+type: 实用工具
+description: 强大的本地托管基于 Web 的 PDF 操作工具
+additionalProperties:
+    key: stirling-pdf
+    name: Stirling-PDF
+    tags:
+        - Tool
+    shortDescZh: 强大的本地托管基于 Web 的 PDF 操作工具
+    shortDescEn: powerful locally hosted web based PDF manipulation tool
+    type: tool
+    crossVersionUpdate: false
+    limit: 0
+    recommend: 0
+    website: https://stirlingtools.com/
+    github: https://github.com/Stirling-Tools/Stirling-PDF
+    document: https://stirlingtools.com/docs/Overview/What%20is%20Stirling-PDF