添加Metronic（作为LFS）

frontend/static/assets/global/plugins/jquery-file-upload/server/php/files/_.htaccess

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+# The following directives force the content-type application/octet-stream
+# and force browsers to display a download dialog for non-image files.
+# This prevents the execution of script files in the context of the website:
+ForceType application/octet-stream
+Header set Content-Disposition attachment
+<FilesMatch "(?i)\.(gif|jpe?g|png)$">
+	ForceType none
+	Header unset Content-Disposition
+</FilesMatch>
+
+# The following directive prevents browsers from MIME-sniffing the content-type.
+# This is an important complement to the ForceType directive above:
+Header set X-Content-Type-Options nosniff
+
+# Uncomment the following lines to prevent unauthorized download of files:
+#AuthName "Authorization required"
+#AuthType Basic
+#require valid-user