fix: add warning for copying not working in insecure contexts

[mmuzikar]

Warning is displayed both in the dropdown and an alert gets displayed for the user to copy the text manually.
Peek 2024-08-29 10-16.webm

Also, I tweaked the event service to be able to render any ReactNode, not just strings, but as string is also a ReactNode it just extended the uses.

Closes #628

[github-actions]

Test Results

  8 files  ± 0    8 suites  ±0   42m 7s ⏱️ + 5m 25s
 66 tests ± 0   64 ✅ ± 0   2 💤 ±0  0 ❌ ±0 
536 runs  +66  508 ✅ +63  28 💤 +3  0 ❌ ±0 

Results for commit 88a0e57. ± Comparison against base commit 4368104.

♻️ This comment has been updated with latest results.

[hawtio-ci]

Test results

Run attempt: 2213
Detailed summary

NAME	TESTS	PASSED ✅	SKIPPED 💤	FAILED ❌	ERRORS 🚫	TIME 🕖
results-quarkus-node(18)-java(17)-firefox	67	64	3	0	0	316.93
results-quarkus-node(18)-java(21)-firefox	67	64	3	0	0	321.719
results-quarkus-node(20)-java(17)-firefox	67	64	3	0	0	313.736
results-quarkus-node(20)-java(21)-firefox	67	64	3	0	0	317.402
results-springboot-node(18)-java(17)-firefox	67	63	4	0	0	312.884
results-springboot-node(18)-java(21)-firefox	67	63	4	0	0	315.995
results-springboot-node(20)-java(17)-firefox	67	63	4	0	0	312.188
results-springboot-node(20)-java(21)-firefox	67	63	4	0	0	316.765