Research Vuestic UI composables

[m0ksem]

The goal is to export as much composables as we can to the Vuestic UI user. This will be helpful for one who want to make custom components and use Vuestic features as base.

For example:

• useSelectableList -> used in components with list structure like VaSelect, VaOptionsList, VaTreeView, etc. Primaraly used for trackBy, textBy, valueBy. We need to make sure it uses generic types and user-friendly.
• useValidation -> used in components with rules, error messages, conencts to VaForm component. User might use this composable when making custom components that require validation.
• useDropdown -> user can use it for dropdowns.
• useSwipe, useElementBackground, useColors, etc.

We need a list of composables that can be used to the end users. Do we even need to care about it?