Add theme audio items and playback on common UI events #1214

Job	Run time
📊 Static checks / Code style, file formatting, and docs	1m 13s
🍎 macOS / Editor (target=editor, tests=yes)	11m 30s
🍎 macOS / Template (target=template_release)	7m 18s
🍏 iOS / Template (target=template_release)	6m 55s
🤖 Android / Editor (target=editor)	17m 23s
🐧 Linux / Editor w/ Mono (target=editor)	27m 48s
🤖 Android / Template arm32 (target=template_release, arch=arm32)	9m 43s
🐧 Linux / Editor with doubles and GCC sanitizers (target=editor, tests=yes, dev_build=yes, scu_build=yes, precision=double, use_asan=yes, use_ubsan=yes, linker=gold)	34m 10s
🤖 Android / Template arm64 (target=template_release, arch=arm64)	10m 5s
🌐 Web / Template w/ threads (target=template_release, threads=yes)	16m 46s
🐧 Linux / Editor with clang sanitizers (target=editor, tests=yes, dev_build=yes, use_asan=yes, use_ubsan=yes, use_llvm=yes, linker=lld)	26m 32s
🌐 Web / Template w/o threads (target=template_release, threads=no)	16m 9s
🐧 Linux / Editor with ThreadSanitizer (target=editor, tests=yes, dev_build=yes, use_tsan=yes, use_llvm=yes, linker=lld)	22m 31s
🐧 Linux / Template w/ Mono (target=template_release)	18m 59s
🏁 Windows / Editor (target=editor, tests=yes)	52m 58s
🐧 Linux / Minimal template (target=template_release, everything disabled)	8m 29s
🏁 Windows / Editor w/ clang-cl (target=editor, tests=yes, use_llvm=yes)	35m 10s
🏁 Windows / Template (target=template_release)	37m 45s
🪲 Godot CPP	0s
	6h 1m 24s

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