- simplified the portal page for course
- added mentods to LMS Course and Community Member to reduce custom code
in portal pages
- included lessons in the ChapterTeaser
- Added new widget SketchTeaser
- Moved get_recent_sketches as static method in LMSSketch
- Added `models.py` to make it easy to import Course and Sketch class
- Updated the sketches template to use the SketchTeaser widget
Widgets are reusable jinja templates which can be used in other
themplates. Widgets are written in widgets/ directory in every frappe
module and can be accessed as `{{ widgets.WidgetName(...) }}` from any
template.