A11Y: Add title attribute to theme switcher #190

Job	Run time
a11y-tests (ubuntu-latest, 3.12)	3m 19s
build PST docs (ubuntu-latest, 3.12)	1m 29s
run-pytest (ubuntu-latest, 3.9)	1m 15s
build PST docs (macos-latest, 3.12)	1m 59s
run-pytest (ubuntu-latest, 3.10)	1m 34s
build PST docs (windows-latest, 3.12)	3m 50s
run-pytest (ubuntu-latest, 3.11)	1m 19s
build PST docs (ubuntu-latest, 3.9, 6.1)	1m 22s
run-pytest (ubuntu-latest, 3.12)	1m 34s
run-pytest (ubuntu-24.04, 3.11)	1m 20s
run-pytest (ubuntu-24.04, 3.12)	1m 35s
run-pytest (macos-14, 3.10)	1s
run-pytest (macos-14, 3.11)	1s
run-pytest (macos-14, 3.12)	1s
run-pytest (macos-13, 3.9)	1m 35s
run-pytest (macos-13, 3.10)	1m 35s
run-pytest (macos-13, 3.11)	1m 37s
run-pytest (macos-13, 3.12)	1m 36s
run-pytest (windows-latest, 3.9)	1m 26s
run-pytest (windows-latest, 3.10)	1m 29s
run-pytest (windows-latest, 3.11)	1m 29s
run-pytest (windows-latest, 3.12)	1m 26s
run-pytest (ubuntu-latest, 3.9, 6.1)	1m 19s
run-pytest (ubuntu-latest, 3.12, dev)	1m 35s
check coverage	0s
lighthouse-audit	3m 51s
profiling	0s
	39m 37s

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