Initial web app: load recipe information automatically

[TrangNguyenBC]

This PR solve issue #49 This is the initial web app which load recipes information automatically and run successfully some recipes. The webpage has 3 columns:

• List of recipe names
• Recipe information and user data input: get_docstrings(), get_recipe_contexts() function
• Result of running recipe

[TrangNguyenBC]

Yes the search bar doesn't work now. I will update it. I also replaced the reset button by "x" inside the search box. With current push, the recipe_contexts is parsed instead of query_contexts and run_contexts, because it causes error in some recipes. For example, query file has no limit or sort-key context, but (in old version) the recipe calls the query with these contexts, so if we use query_contexts and run_contexts separately it will not operate the same way as old version.

The search bar doesn't seem to work, is this planned for a follow-up? Also if the reset button at the bottom of the task list is meant to clear the search, then maybe it would be better if it were next to the search input box.

[ahal]

Thanks for the fixes!