Export notebooks with PlutoStaticHTML

Workflow runs for Export notebooks with PlutoStaticHTML

• fix path splitting only working for windows

  failed:
  Export notebooks with PlutoStaticHTML#4:Commitf97c4fbpushedbybspanoghe
  bs/PlutoStaticHTML-workflow

  Feb 6, 202611m 17s
  More actions for workflow run 4

• extend notebook exporting for all practicals

  failed:
  Export notebooks with PlutoStaticHTML#3:Commit0e0d5e9pushedbybspanoghe
  bs/PlutoStaticHTML-workflow

  Feb 6, 202611m 10s
  More actions for workflow run 3

• workflow - fix package activation

  completed successfully:
  Export notebooks with PlutoStaticHTML#2:Commitbd1cf1fpushedbybspanoghe
  bs/PlutoStaticHTML-workflow

  Feb 5, 202617m 24s
  More actions for workflow run 2

• add PlutoStaticHTML notebook export MWE

  failed:
  Export notebooks with PlutoStaticHTML#1:Commit10a0291pushedbybspanoghe
  bs/PlutoStaticHTML-workflow

  Feb 5, 202622s
  More actions for workflow run 1