[CLIENT] Game front-end not properly encoding special characters when gifting RP

> Illegal character in query at index 140: /storefront/ui/v1/NA1/rp.html?action=RP_PURCHASE&accountid=33531022&language=en_US&giftrecipientaccountid=21582674&giftmessage=TY%20KTHNX%20^_^

It seems as though characters such as carrot "^" are not encoded properly to the storefront server. It should be using the string "%5E%5F%5E" in place of "^_^" or the client should be blocking entry of special characters when typing the RP gift message.

Triggering the message is 100% reproducible and requires gifting RP via...

1. Logging in to the game
2. Visiting the store
3. Clicking the gift bot icon in the upper right area of the content panel
4. Selecting a name from your friends list
5. Selecting "Purchase RP for a friend"
6. Typing a message that uses special characters and hitting "SEND RP"