Disable other test cases when editing one of them.

src/lib/components/latchkeys/Arrow.svelte

src/lib/components/latchkeys/AxisY.svelte

src/lib/components/latchkeys/Latchkey.svelte

src/lib/components/test_cases/TestCaseView.svelte

src/lib/components/test_cases/TestCasesPane.svelte

src/lib/components/variables/VariableHeader.svelte

src/lib/components/waterfalls/Waterfall.svelte

src/routes/__layout.svelte

src/routes/index.svelte

src/routes/variables/[variable]/index.svelte

src/routes/variables/[variable]/inputs/[date].svelte