Assets with variable paths

[revolxof]

Variable assets

Asset paths should be easy to change using the theme JSONs with their own key:

{
    // ...
    "assets": { "typing":"/path/to/typing/asset.gif" }
}

Why should this be a feature

Having more customisable features means users can make revolt their own in a range wider than is currently possible

[ThatTonybo]

This could aid in adding extra elements for themes, such as new icons.