Research how to autocomplete the values from themeGet

[martimalek]

Part of #121

In order to offer the best developer experience while using the new semantic colors we should research how to autocomplete the name of the color when using themeGet.

Currently when writing themeGet('semanticColors.border.primary') you need to manually type every character, which means that you need to know by memory the different color names or open the Colors.d.ts internal file from Wave.