Minor Fixes and Additions to Front-End

[mckenzietsean]

123

130

Changes:

• Removed the placeholder alert boxes from Purchases, Production, Planning, and Sales
• Added a Snackbar for placeholders in Purchases (After attempting to create a new purchase order) and Planning (After attempting to save)

Note:

• We can change the text in the Snackbars later so they can be re-used