Improve pattern provider grouping

[Mithi83]

If different group entries are available still use the more specific icon if it is the same for all group entries.

Fixes #8732

[Mithi83]

Example with different combinations:

1. Furnace + Molecular Assembler -> Generic Pattern Provider (as before), verbose tooltip (as before)
2. 4 Molecular Assemblers with 5 Acceleration Cards each -> Molecular Assembler (as before), slim tooltip (as before)
3. 4 Molecular Assemblers with no upgrades -> Molecular Assembler (as before), no tooltip (as before)
4. 4 Molecular Assembler with 0, 2, 3, and 5 Acceleration Cards respectively -> Molecular Assembler (this has changed), verbose tooltip (as before)

For the review: I'm not sure if if (!icon.getId().equals(group.icon().getId())) is the best way to check for that equality, feel free to suggest an improved check.