Change day schedule from Th-Wed to Sun-Sat

[Hedhunta]

Explanation of the changes, problem that they are intended to fix.

Would like to change the day schedule from Thursday to Wednesday to Sunday To Saturday ...

All Submissions:

• [ x] I have read the code of conduct.
• [x ] I am submitting to the correct base branch

Changes that modify the db structure

• [ Not sure] Backwards compatibility: Users running the new code using an existing .disquetv folder will not lose their channels / settings.
• [Not Sure ] I've implemented the necessary db migration steps if any.

New features

• [x ] I understand that the feature may not be accepted if it doesn't fit the upstream app's planned design direction. But that in this case I am encouraged to share this as an available modification other users can use if they want.