* Introduce branching sections
* parent_index -> branch_parent_index
* Flip the branch icon
* Don't mark branching sections as aborted if the main flow crashes
* Outline more details about branching sections in the Elixir and Livebook notebook
* Add branch indicator to the sections sidebar
* Implement cells bin
* Temporarily keep cells source
* Send complete bin entries from session to clients when a cell gets removed
* Polish styles
* Hydrate bin entries on section deletion as well
* Add initial user config modal
* Assign user ids
* Update session data to hold user ids
* Get users list for specific ids
* Render user avatar
* User update
* Refactor user changes
* Subscribe to individual user updates
* Show users in side panel
* Add sidebar to homepage
* Don't generate the same color twice in a row
* Add documentation notes
* Fix tests
* Add tests
* Keep users in session data
* Rename color to hex_color
* Force menu items into a single line
* Add shortcut for saving the notebook
* Make the disk icon always show file dialog
* Split runtime and file settings into separate modals
* Add ctrl+s to the shortcuts list
* Add togglable menu to the session page
* Make sure newly saved file appears in the file selector
* Fix path seletor force reloading
* Remove notebook generated in tests
* Add test for file list refresh after save
* Add cell image upload modal
* Add controller for serving the images and handle this on markdown side
* Use per-session images dir
* Add etag header to session image responses
* Adjust markdown image styling
* Properly manage session images dir
* Add tests
* Set maximum file size for image uploads
* Move images dir specifics to the Session module
* Move images when nonpersistent session becomes persistent
* Update lib/livebook_web/live/session_live.ex
Co-authored-by: José Valim <jose.valim@dashbit.co>
* Update lib/livebook_web/live/session_live.ex
Co-authored-by: José Valim <jose.valim@dashbit.co>
* Update lib/livebook_web/live/session_live/cell_upload_component.ex
Co-authored-by: José Valim <jose.valim@dashbit.co>
* Test that close gets rid of session temporary dir
Co-authored-by: José Valim <jose.valim@dashbit.co>
* Add full logo to the homepage
* Update sidebar active icon style
* Update lib/livebook_web/live/home_live.ex
Co-authored-by: José Valim <jose.valim@dashbit.co>
Co-authored-by: José Valim <jose.valim@dashbit.co>
* Add notebook indicators
* Make evaluation status button point to the corresponding cell
* Rename introductory notebook
* Update path highlight when chosen for saving
* Allow specifying nonexistent directories when saving and create those
* Update lib/livebook_web/live/session_live/indicators_component.ex
Co-authored-by: José Valim <jose.valim@dashbit.co>
* Update lib/livebook_web/live/session_live/indicators_component.ex
Co-authored-by: José Valim <jose.valim@dashbit.co>
* Update lib/livebook_web/live/session_live/indicators_component.ex
Co-authored-by: José Valim <jose.valim@dashbit.co>
* Update lib/livebook_web/live/session_live/indicators_component.ex
Co-authored-by: José Valim <jose.valim@dashbit.co>
* Update lib/livebook_web/live/session_live/indicators_component.ex
Co-authored-by: José Valim <jose.valim@dashbit.co>
Co-authored-by: José Valim <jose.valim@dashbit.co>
* Update cell actions
* Add new focus indicator
* Update headings typography
* Update cell actions and insert buttons
* Add sidebar menu
* Add settings modal
* Update homepage
* Update settings dialog
* Rename classes
* Add floating menu
* Update icon colors on hover
* Fix homepage tests
* Format assets source
* Update monaco editor
* Fix editor width on resize
* Add more padding to the notebook content
* Update settings dialog title
* Show reevaluate button when the cell is in evaluated state
* Show section actions on focus or hover only
* Pre-fill runtime selector with the current configuration
* Ignore cmd + enter in Markdown cells
