This commit includes the marginal 1D diagnostic tool with JavaScript
callbacks.

- Removes ArviZ as a dependency from the diagnostic tool.
- Adds jsdoc Documentation for the TypeScript methods.
- Fixes flake8 linting error.
- Adds clarifying comments to the tool.
- Adds missing copyright notice.

- Aligns type names between Python and TypeScript. There is now a
  one-to-one correspondence between Python TypedDict objects and the
  TypeScript interface objects.
- Redundancy in the Python TypedDict objects has been removed.
- Fixes tooltips not rendering correctly.
- Updates the link in the Help Tab of the tool such that when clicked it
  opens a new tab in the browser.
- Moves a few peerDependencies to the devDependencies section in the
  package.json file. This was done because yarn issued a warning
  indicating there were missing peer dependencies.
- Refactors the tool such that no calculations for the data displayed is
  done in Python. All updates and all calculations for the tool data is
  done exclusively in the browser. The rational for this change was to
  prevent users from having initial data calculated by Python, and
  subsequent updates calculated by JavaScript in the browser when
  interacting with the tool. There are notes in the code indicating why
  this change was made.

- Moved all Bokeh embed from the tool class to the base class.
- Updated tool class docs.
- New method on the base class that contains an HTML template for more
  intuitive required UI for better UX.
- Reordered how the tool view is created in order to attach the new CSS
  class for the UI/UX updates.

- Refactors dosctrings from NumPy to Google style.
- Added a prettierrc for dev and updated the package.json, yarn.lock
  files
- Refactored the marginal1d tool for responsive size changes and updated
  to the format that allows Docusaurus integration.
- Added more documentation around the accessor objects with an explicit
  example in the docstring.