font-awesome 최신 버전에 아래 선택자 존재하는지 확인하고
없는 경우 비슷한 선택자로 대체합니다.

- regular
- eye
- reply
- ellipsis-v
- bookmark
- thumbs-o-down
- link
- chevron-down
- search
- cog
- lock
- download
- rss
- commenting
- clock
- pencil
- arrows
- thumbs-o-up
- phone
- pen-to-square
- chevron-left
- trash
- question-circle
- database
- thumb-tack
- window-restore
- times-circle
- bars
- question
- users
- heart
- chevron-right
- envelope
- angle-double-right
- solid
- brands
- style-family
- sr-only
- caret-right
- trash-can
- file
- spin
- arrow-up