Require jupyter_server_fileid

[davidbrochart]

Closes #48.

[codecov-commenter]

Codecov Report

Base: 0.00% // Head: 0.00% // No change to project coverage 👍

Coverage data is based on head (89c76c9) compared to base (033456e).
Patch coverage: 0.00% of modified lines in pull request are covered.

Additional details and impacted files

@@          Coverage Diff          @@
##            main     #51   +/-   ##
=====================================
  Coverage   0.00%   0.00%           
=====================================
  Files          2       2           
  Lines        224     218    -6     
=====================================
+ Misses       224     218    -6     

Impacted Files	Coverage Δ
jupyter_server_ydoc/ydoc.py	0.00% <0.00%> (ø)

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