[Enhancement] Calc: Add "tab list" for easy access to tabs

[bayramcicek]

If there are a lot of tabs in Calc, it can be difficult to scroll horizontally to locate the desired tab.

We can have a tab list on the left of the spreadsheet toolbar - similar to google sheets:

[pedropintosilva]

I think this could be a very nice addition. Specially with a more specific/semantic icon