[REQUEST] Implement component-specific attributes from v3

[FayeDel]

What is the feature you're proposing?
Essentially, some v3-based properties like ctx.component, ctx.selected_options, etc, are not present in v4. They can be iterated manually, but it would be nicer if there'd be a @property based attribute that has the lib abstract the iteration and such similar to how v3 was, so we can also have ctx.label (ctx.component could arguably be redundant if you're using a callback for one singular component, or not for multiple stacked decorator usage.)

Additional Information

• My feature request is related to an existing Issue.
  • Issue (if referenceable):

[Damego]

Ig ctx.component should be.
We can change component and then edit message with updated components

ctx.component.label/style/disabled = *something*
await ctx.edit(components=ctx.message.components)