Proper alignment of all map and character layers

[samantha-smiles]

Issue Description: Characters do not align correctly with a specific chair. This misalignment occurs on the first attempt to sit after launching the initial build.

• Rebuild EndlessClient.
• Try to sit on a chair without the character initially sat.

An image is attached for reference.

Known solution: Close and reopen the application before attempting to sit.

[ethanmoffat]

Sitting on the ground is also slightly misaligned compared with the vanilla client expected:

actual:

[ethanmoffat]

The offsets are wrong with both fixed and resizable windows, for both chairs and ground sitting, for both main character and other characters.

[ethanmoffat]

I'm updating this to a more generic "align things correctly" task. Turns out a lot of things are misaligned beyond just chairs.

Should also create unit test cases to enforce the correct coordinate values so that refactors can be made without causing regressions.