Feature Request Hover Alias Original and Expanded

Currently there is an option Lua > Hover > Expand Alias that allows defining an alias and instead of seeing the alias-name when using the alias you will see what the alias is made of so `---@alias myType boolean | number` will appear as `boolean | number` instead of `myType`. However, there are circumstances where knowing what the alias is but also what it is made of can be useful. Is there a way we can have a both option here where on hover we can see both the alias name and its expansion? Something like `myType - (boolean | number)`

Start at the Lua > Hover > Expand Alias setting and trace the hover rendering for type aliases. Add a mode that displays both the alias name and its expansion, such as `myType - (boolean | number)`, and verify that existing alias display modes remain unchanged.

Written by the indexing model from the issue text.