✍️ New text and rich text options

New

• [ELEMENT] [RICH TEXT] Add ability to underline text
• [EDITOR] [STYLE] Allow users to bind all text properties
• [EDITOR] Add REM sizing for missing parameters
• [AUTH] Add a query variable with the source URL when user is redirected to login page
• [EDITOR] Rename "Request through server" into "Proxy the request to bypass CORS issues"

Fixed

• [EDITOR] [FORMULA] Fix display issue for global formula
• [DASHBOARD] Retry button not working in the domain name page
• [EDITOR] [SLIDER] Impossible to modify text of slides
• [ELEMENT] [RADIO INPUT] Not working if in repeating item