[client] pipewire: Add pipewire application name #2522

Job	Run time
docs	38s
host-linux	32s
client (gcc, g++, xdg-shell, Release)	46s
client (gcc, g++, xdg-shell, Debug)	43s
host-windows-native	1m 33s
client (gcc, g++, libdecor, Release)	1m 0s
host-windows-cross	42s
module	20s
client (gcc, g++, libdecor, Debug)	48s
obs (gcc)	35s
client (clang, clang++, xdg-shell, Release)	1m 37s
obs (clang)	26s
client (clang, clang++, xdg-shell, Debug)	39s
client (clang, clang++, libdecor, Release)	1m 30s
client (clang, clang++, libdecor, Debug)	1m 0s
	12m 49s

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