Modal support for /eval and /tag commands

[Tolga1452]

What would you like to see added to Assyst?
A modal to enter the code when you use the /eval and /tag create/edit commands.

Additional context
Slash command options are too small and do not support multiple lines on desktop so I think a modal would be better for the commands require a command input. Also a default value for /tag edit command's modal would make tag editing way easier.