Food flow changes

[DeeTheDev]

Fixes #538

Layout changes

• Add 'buffer' property in PageLoader components where necessary
• Ensure consistent LayoutContainer gutters
• When loading lists, ensure PageLoader placed correctly
• Localize new strings
• OrderDetail confirmation alert should live at the top, not the bottom
• OrderHistoryList -> if an order is claimed, change context to "claimed on [date]"

First team requested changes:

• Remove FoodDetails page "eligible for.." context
• Update subsidy and discounts context into a sentence rather than inline totals
• OrderDetail update edit-button location and fix styling shift
• OrderDetail, add press and hold button warning so members don't accidently click
• Do not display credit/discount details in the FoodList, we only display the customerPrice/Discount, we show details in the Detail page
• FoodPrice add condition to show discounts when there is a difference between customerPrice and undiscountedPrice totals
• Localize all new translations and remove unnecessary ones

Second team review requested changes

• Fix incorrect discount/subsidy context in FoodDetail
• FooDetail, move vendor below the divider line
• Fix showing of the available credit on the FoodCart page
• apply the subsidy for the subtotal (show $10 instead of $90)
• ensure the offering can be paid at checkout without problems
• Fulfillment options have link to address in google maps
• "checkout whats available" typo, -> "what's"
• FoodDetail, change order of discount and subsidy credit context

Additional changes

• Update loaderRing icon to take full with and height of the viewport, update class and styling
• Cart quantity loading sign (Rob contribution)

[DeeTheDev]

Merging without review primarily because we need these changes by tomorrow. @rgalanakis To review tomorrow and deploy to production in heroku.