:art: 支持去掉 PDF 导出页脚处 `由思源笔记导出` Fix https://github.com/siyuan-note/siyuan/issues/6881

app/src/config/exportConfig.ts

@@ -27,6 +27,14 @@ export const exportConfig = {
     <span class="fn__space"></span>
     <input class="b3-switch fn__flex-center" id="addTitle" type="checkbox"${window.siyuan.config.export.addTitle ? " checked" : ""}/>
 </label>
+<label class="fn__flex b3-label">
+    <div class="fn__flex-1">
+        ${window.siyuan.languages.export21}
+        <div class="b3-label__text">${window.siyuan.languages.export22}</div>
+    </div>
+    <span class="fn__space"></span>
+    <input class="b3-switch fn__flex-center" id="addFooter" type="checkbox"${window.siyuan.config.export.addFooter ? " checked" : ""}/>
+</label>
 <label class="fn__flex b3-label">
     <div class="fn__flex-1">
         ${window.siyuan.languages.blockRef}
@@ -121,6 +129,7 @@ export const exportConfig = {
             fetchPost("/api/setting/setExport", {
                 paragraphBeginningSpace: (exportConfig.element.querySelector("#paragraphBeginningSpace") as HTMLInputElement).checked,
                 addTitle: (exportConfig.element.querySelector("#addTitle") as HTMLInputElement).checked,
+                addFooter: (exportConfig.element.querySelector("#addFooter") as HTMLInputElement).checked,
                 blockRefMode: parseInt((exportConfig.element.querySelector("#blockRefMode") as HTMLSelectElement).value, 10),
                 blockEmbedMode: parseInt((exportConfig.element.querySelector("#blockEmbedMode") as HTMLSelectElement).value, 10),
                 fileAnnotationRefMode: parseInt((exportConfig.element.querySelector("#fileAnnotationRefMode") as HTMLSelectElement).value, 10),