feat: support copy static folder when generate static pages.

src/main/java/run/halo/app/controller/content/ContentArchiveController.java

@@ -15,7 +15,6 @@ import org.springframework.web.bind.annotation.*;
 import run.halo.app.cache.StringCacheStore;
 import run.halo.app.cache.lock.CacheLock;
 import run.halo.app.exception.ForbiddenException;
-import run.halo.app.exception.NotFoundException;
 import run.halo.app.model.entity.Category;
 import run.halo.app.model.entity.Post;
 import run.halo.app.model.entity.PostMeta;

src/main/java/run/halo/app/service/impl/StaticPageServiceImpl.java

@@ -128,9 +128,10 @@ public class StaticPageServiceImpl implements StaticPageService {
             this.generateSiteMapHtml();
             this.generateSiteMapXml();
             this.generateRobots();
+            this.generateReadme();
             this.copyThemeFolder();
             this.copyUpload();
-            this.generateReadme();
+            this.copyStatic();
         } catch (Exception e) {
             throw new ServiceException("生成静态页面失败！", e);
         }
@@ -661,6 +662,15 @@ public class StaticPageServiceImpl implements StaticPageService {
         FileUtils.copyFolder(Paths.get(haloProperties.getWorkDir(), "upload"), path);
     }
 
+    /**
+     * Copy static folder.
+     *
+     * @throws IOException IOException
+     */
+    private void copyStatic() throws IOException {
+        FileUtils.copyFolder(Paths.get(haloProperties.getWorkDir(), "static"), pagesDir);
+    }
+
     /**
      * Build posts for feed
      *