feat: added home page

- Refactored the lms_course page and added find_all method to find courses
- Added CourseTeaser widget
- Added /home as a portal page

community/www/home/index.py

@@ -0,0 +1,7 @@
+import frappe
+from community.lms.models import Course, Sketch
+
+def get_context(context):
+	context.no_cache = 1
+	context.courses = Course.find_all()
+	context.recent_sketches = Sketch.get_recent_sketches(limit=8)