web: upgrade to vue3

[bobheadxi]

closes #55

[codecov]

Codecov Report

Merging #56 (0c74f9c) into master (ce7659b) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #56   +/-   ##
=======================================
  Coverage   30.87%   30.87%           
=======================================
  Files           8        8           
  Lines         460      460           
=======================================
  Hits          142      142           
  Misses        302      302           
  Partials       16       16           

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