add nice scene for menu of all vaults to switch vaults before opening tasker (there's already a termux script for it)

[DovieW]

• it should be smart meaning it should keep track of which vault was opened last and just open obsidian directly if the same vault is selected. this will not work if the user decides to change the vault from Obsidian itself since that would mess up the tracking done from a script or tasker. maybe it's possible to check which folder was last accessed instead of tracking which was last opened?