[SD-334] fix FileUpload style

Tianyi LIANGrequested to merge
fix/SD-334-file-upload-input into main
  • fix style of FileUpload
  • refactor ImageModal
    • for non-jamboree usage: use Modal
    • for jamboree usage: fix close button

Closes SD-334

Edited by Tianyi LIANG

Merge request reports