Add /sign command β allows editing of already placed signs (only signs placed by the player)
βββ³ Format: /sign <line_number> <message>
βββ³ Supports color codes (e.g. /sign 2 &b&lWelcome)
βββ³ Makes it easier to apply complex color formatting by letting players type in chat, rather than being limited by Minecraftβs small in-sign input box