floating fx window titles should reflect renamed fx instances + item/track name

having a lot of those floating fx windows makes it hard to pick the right one for editing and often leads to editing the wrong one.

it would help a lot and greatly reduce confusion if the titles of floating windows would display the (renamed) name of the fx instance plus the name of the item or the track they belong to respectively.

There's not a lot of use in having an fx instance renaming feature if it is restricted to the fx list itself where it's fairly easy to pick the right instance anyway. Renaming becomes really helpful as soon as custom fx names show in the respective instance's window titles.

floating fx window titles should reflect renamed fx instances + item/track name