Bug fix - dark mode was hiding disclaimer screen shown on first use of app

Update app to cope with dark mode.
Increase Copper maximum normal range to 250 mg/kg

Bug fix for row 3 missing data when entering feed details
Bug fix to add nutrient back to picker list once deleted from feed

Bug fix to handle comma decimal number entry

Add extra error checking for numeric data entry

Improve reporting for missing data error when entering feed information
Remove checking for feed name duplicates
Change database sync to make sure all new feeds are downloaded to devices

Bug fix to stop flickeriing when scrolling through feed table
Bug fix to allow swipe to delete nutrient when editing feeds
Added a button to show random quotes

Bug fix to stop crash when adding several feeds on one horse

Fix spacing issue on "Add a feed" screen for iPhone SE (1st Gen)
Some changes have been made to the sharing feature.  Shared feeds will no longer show red or green while waiting for sharing approval. Feeds added by you will show with a star

Minor bug fixes

This version contains a new feature that shows a graphical comparison of two feeds.  The results detail screen now shows a more graphical view also.

Added "ml" unit of measure to allow liquid supplements to be added to the feed list

Minor bug fixes
Also, added a calorie calculator option when creating a new feed