Improve dismissible component

[sebnitu]

Problem

The dismissible component is not very robust and is pretty minimal in it's usefulness.

Possible Solution

Here are some ideas on ways to improve the dismissible component:

• Add it's own styles. These styles would admittedly be minimal since it's essentially a class that applies display: none;, but I'd like for it to not assume the existance of other utility components (e.g. display_none as found in @vrembem/utility).
• Add more style options, possible fade or slide transitions.
• Add a delay once the "dismiss" event occurs and "remove" after a period of time.
• Add custom event emitters

Update

It may be worth just remove this component for now until a more useful one is created.

[sebnitu]

The dismissible component has been deprecated: #295