* minro code edits
* Added support for acknowledging code of conduct
- Added CodeOfConduct component that shows links and a checkbox that must be acknwledged before seeing the public galley
- Added verbose message for notebook publish error (when another notebook with the same name exists in the gallery)
- Added a feature flag for enabling code of conduct acknowledgement
* Added Info Component
* minor edit
* fixed failign tests
* publish tab displayed only when code of conduct accepted
* added code of conduct fetch during publish
* fixed bug
* added test and addressed PR comments
* changed line endings
* added comment
* addressed PR comments
* Added support for taking screenshot
- Screenshot is taken using html2canvas package
- Converted to base 64 and uploaded to metadata
- For Using first display output
- Notebok object is passed instead of string, to publish pane
- The first cell with output present is parsed out
- The dom is also parsed to get corresponding div element to take screenshot of the first output
* fixed bug
* Addressed PR comments
- FIxed bug that didn't capture screenshot when mutiple notebook tabs are opened
* removed unnecessary dependencies
* fixed compile issues
* more edits
* Initial commit
* Address PR comments
* Move notebook related stuff to NotebookManager and dynamically load it
* Add New gallery callout and other UI tweaks
* Update test snapshot
