IET Updates (version bump, 1080p Layout fix, fixed typo)

[pierre-unity]

Purpose of this PR

• Upgrade to IET framework version 2.1.1 (was 2.1)
• Fixed typo in Volume tutorial
• Fixed 1080p layout issue (too narrow panel)
• Improved a link leading to doc (using #)
• Fixed unnecessary indentation for Fog section

1080p:

4K:

Comments to reviewers

Test that the layout looks fine at 1080p and 4K

[github-actions]

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[github-actions]

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[iM0ve]

Its good with a few small nit picks:

• Materials Bush_01_Mat and Fern_01_Mat have their height map amplitude changed from 0.01 to 0.02. But in the scene they're not using any height map so I dont see any difference. Was this an intentional change or maybe something with upgrade system? Does it have some effect and I missed it? Do we want to revert these files if its accidental? We could merge as is, just want to understand.
• Its not introduced with this PR, but maybe we could also change the indentation of the tutorial Volumetric Fog tutorial with this PR?

Volumetric fog

General result(good)

We could merge as is but we can consider the optional fixes

[pierre-unity]

Its good with a few small nit picks:

• Materials Bush_01_Mat and Fern_01_Mat have their height map amplitude changed from 0.01 to 0.02. But in the scene they're not using any height map so I dont see any difference. Was this an intentional change or maybe something with upgrade system? Does it have some effect and I missed it? Do we want to revert these files if its accidental? We could merge as is, just want to understand.
• Its not introduced with this PR, but maybe we could also change the indentation of the tutorial Volumetric Fog tutorial with this PR?

Volumetric fog

General result(good)

We could merge as is but we can consider the optional fixes

Thanks, I've now fixed the indentation issue. For the 0.02 amplitude, I'll leave it as it is for the template, as it doesn't alter visuals.