Fee information for posting bounty

**User Story:**
As a funder
I want to know about the 10% fee to post a bounty
So that i am aware of the total cost

**Acceptance Criteria**
**Display Fee Information - Non Pro Member - no payment details added**
GIVEN I am creating a bounty
AND i am not a pro member
WHEN I navigate to the Payment Details page
AND have not entered any payment details
THEN I will see a banner warning me about the 10% fee

**Display Fee Information - Non Pro Member - payment details added**
GIVEN I am creating a bounty
AND i am not a pro member
WHEN I navigate to the Payment Details page
AND i enter token and bounty payout amount
THEN I will see a banner warning me about the 10% fee
AND that banner will also include the actual fee amount within the banner in this format ([.1 * bounty amount] [Selected token symbol])

**Hide Fee Information - Pro Member**
GIVEN I am creating a bounty
AND i am a pro member
WHEN I navigate to the Payment Details page
THEN i will NOT see the banner warning me about the 10% fee

**Product & Design Links:**
https://www.figma.com/file/8AFLrc4dx9xnMXUkWOAaAR/Existing-Bounties-Updates?node-id=201%3A807