feat: add custom API route for .deepnote files#27

andyjakubowski merged 7 commits intodevin/1760105835-add-lint-stageddeepnote/jupyterlab-deepnote:devin/1760105835-add-lint-stagedfrom

andy/grn-4926-load-backend-extension-config-without-explicit-cli-flagdeepnote/jupyterlab-deepnote:andy/grn-4926-load-backend-extension-config-without-explicit-cli-flagCopy head branch name to clipboard