add modal support to /modmail command

[hamzanaciri99]

Pull-request

• I have read the contributing guidelines.
• I have read the code guidelines.
• I have created a relating issue.

Changes

• Existing code
• New feature

Closes Issue: #645

Description

Add modal for users to write their message, the command still accepts guild and "Wants to stay anonymous" as parameters, only message has been moved into the modal.

The new command looks like this:

[CLAassistant]

All committers have signed the CLA.

[Taz03]

i'd say keep the anonymous field in the modal as well, what do u guys think?

[Taz03]

i'd say keep the anonymous field in the modal as well, what do u guys think?

@Zabuzard what about this?

[hamzanaciri99]

i'd say keep the anonymous field in the modal as well, what do u guys think?

Wouldn't it be ambiguous for users? the current one gives options, they would have to type yes or no, but users who used it before may type true and false instead.
It would be nice if we could validate user input before submitting, and show a message if the input in invalid (!= yes/no)

[Taz03]

the current one gives options, they would have to type yes or no, but users who used it before may type true and false instead.

we can accept everything from y/n, yes/no, t/f, true/false

It would be nice if we could validate user input before submitting

unfortunately that is not possible

[Zabuzard]

if modals support dropdowns, i would want to move as much as possible into it. if thats not an option, i would rather want to keep it as slash-command. dont want to have input-parsing y/n/yes/no/... on that honestly. in particular if we have a slash-command input already anyways due to the guild-dropdown (unless modals have dropdowns)

[Zabuzard]

Awesome, thanks for your contribution ❤️ Are you on our Discord? If so, could you tell me your account name, then I can give you the contributor badge 👍

[hamzanaciri99]

Thank you @Zabuzard for your kind words.
Yes, I am on your Discord, my name is Rimuru.

[Taz03]

i can see 2 Rimuru in discord, pls tell ur tag as well

[hamzanaciri99]

Rimuru#2995