feat($vssue): configurable issue body

[Mrminfive]

configurable comment body

[meteorlxy]

Thanks for your PR.

The customizable issue content could be a useful feature for some users. Some discussions:

• It could be more flexible if it can be set in both options and props, so the issueContent computed may be placed in Vssue.vue but not in VssueStore.ts (like the issueTitle computed).
• It could be more flexible if it can accept functions (seems that it only accepts string now).
• The docs should be updated, too.

[Mrminfive]

It has been modified now.

[Mrminfive]

Why not use async functions ?

[meteorlxy]

@Mrminfive

Great thanks~

This feature has been released in v0.7.0

I'm not sure if it's necessary to use async functions, so I remove it. If you need this feature, we can try to support it in future PR.

BTW, Object.prototype.toString.call(asyncFunction) returns "[object AsyncFunction]" in Chrome, not "[object Promise]"

[Mrminfive]

Yes, I have a scene that needs to use an asynchronous function.

Thank you for your reminder.

[meteorlxy]

@Mrminfive

Could you please provide a example for why you need async function? In my mind, almost all the common scene could be solved by function.

[Mrminfive]

I need to replace issueContent with the contents of the md file. It is not reasonable to import the md content directly into the js file, so I need to load the resource asynchronously.

[meteorlxy]

@Mrminfive

Support async function for issueContent in v0.7.1

[Mrminfive]

thx