FRED and qtFRED quality-of-life improvements for highlighted models #7462

Job	Run time
Mac (Debug, clang, arm64)	6m 25s
Mac (Release, clang, arm64)	6m 55s
Mac (Release, clang, x86_64)	9m 12s
Windows (Debug, MSVC, Win32)	16m 6s
Mac (Debug, clang, x86_64)	6m 44s
Windows (FastDebug, MSVC, Win32)	23m 25s
Windows (Debug, MSVC, x64)	14m 19s
Windows (FastDebug, MSVC, x64)	22m 43s
Windows (Release, MSVC, Win32)	22m 17s
Windows (Release, MSVC, x64)	24m 24s
Linux (Debug, gcc-9)	18m 10s
Linux (Debug, gcc-13)	14m 40s
Linux (Debug, clang-16)	15m 56s
Linux (Release, clang-16)	24m 5s
Linux (Release, gcc-13, -DFSO_BUILD_WITH_OPENGL=OFF -DFSO_BUILD_WITH_VULKAN=OFF)	18m 3s
Linux (Release, gcc-13)	17m 8s
Linux (Debug, gcc-13, -DFSO_BUILD_WITH_OPENGL=OFF -DFSO_BUILD_WITH_VULKAN=ON)	15m 19s
Linux (Release, gcc-13, -DFSO_BUILD_WITH_OPENGL=OFF -DFSO_BUILD_WITH_VULKAN=ON)	17m 30s
Linux (Debug, gcc-13, -DFSO_BUILD_WITH_OPENGL=OFF -DFSO_BUILD_WITH_VULKAN=OFF)	13m 46s
Linux (Release, gcc-9)	22m 59s
	5h 30m 6s

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