Fix update property for dictionaries so that it updates only what is necessary.

[ajreckof]

This is the dictionary counter part of #80706.

• Fixes "Paste Value" does not refresh the displayed values of array/dict elements in inspector #75124 ( see Rework update_property for array #80706 (comment))

This is a small step towards #76078 as I decided to break it into smaller pieces for it to be easier to make and review.

• Supersedes Fix nested array editor not being updated on type change. #87140 and Fixes Nested Array editors do not update automatically #87139

The last part could be removed from this PR if needed, I would then update #87140 once this PR is merged with what I removed from here. See #87140 (comment) for why the array parts are linked to dictionnary parts

• EDIT : Fixes EditorDictionary use VectorX editors for VectorXi elements #88283
• Fixes Resources Editor inside Array/Dictionary editors inside Dictionary editors look strange #88531

[KoBeWi]

It breaks dragging elements to other pages:

godot.windows.editor.dev.x86_64_f34FnBck1Z.mp4

[ajreckof]

It breaks dragging elements to other pages:

godot.windows.editor.dev.x86_64_f34FnBck1Z.mp4

Fixed

[KoBeWi]

Fixed

It's still a little bugged 🤔

godot.windows.editor.dev.x86_64_ThlgrE8Clj.mp4

The original element gets focused once drag ends. But at least it's moved correctly, so maybe it's fine for now.

[KoBeWi]

The magic number should likely be replaced with a constant.

[ajreckof]

Fixed

It's still a little bugged 🤔

godot.windows.editor.dev.x86_64_ThlgrE8Clj.mp4
The original element gets focused once drag ends. But at least it's moved correctly, so maybe it's fine for now.

This was not introduced by this PR(present on master). Should be easy to fix though. Do you think I should add the fix in this PR or create a separate issue/PR?

[KoBeWi]

If it's pre-existing, you can open an issue (if it wasn't reported already).

[akien-mga]

Thanks!