Improve default formats

[mwu2018]

What this PR does

Fixes https://github.com/TerriaJS/nsw-digital-twin/issues/674

How to test

before
after

After expanding the group, search keyword "instrument" in the catalog. Then go to

• Digital Earth Australia Hotspots, testing item with type WMS and URL ending with wms.
• Environmental Planning Instrument - Acid Sulfate Soils, testing item with type Map Service and URL ending with MapServer?f=pjson.
• Environmental Planning Instrument - Acid Sulfate Soils/Protection, testing item with type Map Service and URL ending with MapServer/1?f=pjson.
• Transitional - Excluded Land, testing item with type ImageServer and URL ending with ImageServer.

All of the above tests will fail in before.

Checklist

• There are unit tests to verify my changes are correct or unit tests aren't applicable (if so, write quick reason why unit tests don't exist)
• I've updated relevant documentation in doc/.
• I've updated CHANGES.md with what I changed.
• I've provided instructions in the PR description on how to test this PR.

[ljowen]

Would this change impact singular WMS layers matching the regex?

[mwu2018]

I think it will become one member group.

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