Fix fatFS upload thanks @liqijian101

Author: luc-github

esp3d/src/include/version.h

@@ -22,7 +22,7 @@
 #define _VERSION_ESP3D_H
 
 //version and sources location
-#define FW_VERSION "3.0.0.a106"
+#define FW_VERSION "3.0.0.a107"
 #define REPOSITORY "https://github.com/luc-github/ESP3D/tree/3.0"
 
 #endif //_VERSION_ESP3D_H

esp3d/src/modules/filesystem/flash/fat_esp32_filesystem.cpp

@@ -257,7 +257,8 @@ void ESP_File::close()
         //reopen if mode = write
         //udate size + date
         if (_iswritemode && !_isdir) {
-            File ftmp = FFat.open(_filename.c_str());
+            String s = _filename[0]=='/'?"":"/" + _filename;
+            File ftmp = FFat.open(s.c_str());
             if (ftmp) {
                 _size = ftmp.size();
                 _lastwrite = ftmp.getLastWrite();