Describe the feature

pressing the open terminal keybind while the terminal is open should close the terminal again
(same with portable cells)

Reasons why it should be considered

mostly for consistency, since the vanilla inventory can also be closed by using the inventory key

Additional details

originally opened on ae2wtlib: Mari023/AE2WirelessTerminalLibrary#194

for wireless terminals specifically, right?

yes, wireless terminals and portable cells only

Socializing a potential way of adding this feature.

#7182

This may conflict hard with tab focus behavior if one uses the TAB keybind.