Analytics marketing language updates

• Remove "USD" from the end of each word in Earnings section

It is redundant to have the word USD at the end of each metric, such as "Pageviews USD" and "Sales USD". The amount displayed is in USD already, and we want the ability for people to earn in Bitcoin, Ether or Minds Tokens as well (though we do not need to display earnings in the currency type, we can just convert at time of payout request).

• Change "Subscribes" to "Subscribers" in Engagement section

"Subscribes" can be interpreted as how many people you subscribed to. Subscribers is more clear that it means how many people subscribed to you in the time period and its what we say in the tool tip.