v1.2.0

• [Feat] Include Suspense within the library to allow build of next >= 14.1.0 to to build successfully.
  Regarding issues #22 and #24
• [Ref] Refactor code to remove unnecessary files.
• [Ref] Add default export of Next13ProgressBar from the package.
  i.e:

  import Next13ProgressBar from 'next13-progressbar';

  can now be used.