Use Panorama event handlers for handling dropdown selection changes #1922

Job	Run time
msbuild (windows-2022, ClangCL, Release)	59s
msbuild (windows-2022, ClangCL, Debug)	59s
cmake (windows-2022, MSVC, Release)	5m 24s
msbuild (windows-2022, MSVC, Release)	42s
cmake (windows-2022, MSVC, Debug)	4m 58s
cmake (windows-2022, ClangCL, Debug)	3m 29s
msbuild (windows-2025, ClangCL, Debug)	1m 6s
msbuild (windows-2025, MSVC, Debug)	56s
cmake (windows-2025, ClangCL, Debug)	3m 45s
msbuild (windows-2025, MSVC, Release)	42s
msbuild (windows-2025, ClangCL, Release)	1m 46s
cmake (windows-2025, ClangCL, Release)	3m 45s
cmake (windows-2025, MSVC, Debug)	4m 19s
msbuild (windows-2022, MSVC, Debug)	1m 28s
cmake (windows-2025, MSVC, Release)	5m 48s
cmake (windows-2022, ClangCL, Release)	3m 31s
	43m 37s

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