`shinyApp` chunk in vignettes only runs if is in interactive mode #1071

All 147 tests pass in 10m 42s

1 files ±0 22 suites ±0 10m 42s ⏱️ -3s
147 tests ±0 147 ✅ ±0 0 💤 ±0 0 ❌ ±0
478 runs ±0 478 ✅ ±0 0 💤 ±0 0 ❌ ±0

Results for commit 67392cd. ± Comparison against earlier commit 4f6996a.