Add double check popup when `CASHBOX` reimbursement is selected
   * This required modifying the doubleCheck function slightly, other files had to be modified to match the change.
   * The doubleCheck function was modified to not put a `?` at the end of the message displayed to the user. All messages were rewritten as a result.
   calpoly/frontend/static/js/consoles/finance.js: Add double check before submitting a cash box reimbursement.
   calpoly/frontend/static/templates/consoles/finance.html: The double check message is stored in a <span> here.
   calpoly/frontend/static/js/consoles/config.js,
   calpoly/frontend/static/js/consoles/posts.js,
   calpoly/frontend/static/js/consoles/profile.js,
   calpoly/frontend/static/js/consoles/tutoring.js,
   calpoly/frontend/static/js/ieee.js,
   calpoly/frontend/static/js/pages/posts_edit.js: Modify double check message.