Describe the Bug

Contraptions can't attach Item Frames (with or without items on them), but Placards do.
I'm trying to add Quark Glass Item Frame to label stuff on my contraption since it's really useful for Input/Output since you can "click through them", but noticed also Vanilla item frames don't attach when mounted the Minecart contraption.

Reproduction Steps

• Attach Item Frame to an storage unit (Barrel/Chest/etc)
• Mount the Contraption
• Frames got destroyed (since they can't be attached to air)

Expected Result

Frames get attached if glued properly (also on this I noticed that Placards get attached to contraption even when not glued, not sure if this is intended or not).
Also would be nice that the Frames show the item on them (but not sure if this is something wanted, considering how Contraptions interact with Signs, so maybe you want just to show the empty frame for performance. A config option on this would be perfect, if possible).

Mod Version

0.5.0g

Minecraft Version

1.18.2

Forge Version

40.1.85

Other Mods

• Quark (optional, since bug happened with Vanilla Item Frames too)

Placards are blocks, item frames are entities. I assume placards were added to compensate for the lack of ability to have item frames on contraptions.

well, that makes sense but it's sad not having the option to mark and interact containers or others blocks (since the Placards are big and use almost the full face of the block).
Maybe, as a suggestion, would be nice to have something with that functionality if it's not possible to make it work with Frames (I think because they're entities it's more tricky to make it work consistently than with blocks)