Reintroduce 'manually detachable struts' [via Parts Manager / Action hotkey]

[Flush Foot]

When decoupled normally or via glitched re-connections upon reloading a save (as when two parts of the same vessel have later re-docked), struts are not always separating as expected.

I therefore ask that struts be given a 'detach/disconnect' option when right-clicking a node / locating "the right one" in the Part Manager menu. [EAS-4 Strut appears in the part-list, but with no actions]