refactor(preferences-plugin): adjust the look to be consistent with the rest of the plugins

[mmelko]

…he rest of the plugins

[github-actions]

Test Results

  8 files  ±0    8 suites  ±0   50m 30s ⏱️ +14s
 66 tests ±0   64 ✅ ±0   2 💤 ±0  0 ❌ ±0 
536 runs  ±0  508 ✅ ±0  28 💤 ±0  0 ❌ ±0 

Results for commit c9a09dd. ± Comparison against base commit e8ad5b3.

[hawtio-ci]

Test results

Run attempt: 1677
Detailed summary

NAME	TESTS	PASSED ✅	SKIPPED 💤	FAILED ❌	ERRORS 🚫	TIME 🕖
results-quarkus-node(18)-java(17)-firefox	67	64	3	0	0	379.716
results-quarkus-node(18)-java(21)-firefox	67	64	3	0	0	375.455
results-quarkus-node(20)-java(17)-firefox	67	64	3	0	0	376.791
results-quarkus-node(20)-java(21)-firefox	67	64	3	0	0	382.645
results-springboot-node(18)-java(17)-firefox	67	63	4	0	0	374.32
results-springboot-node(18)-java(21)-firefox	67	63	4	0	0	381.657
results-springboot-node(20)-java(17)-firefox	67	63	4	0	0	383.737
results-springboot-node(20)-java(21)-firefox	67	63	4	0	0	375.73