fix: [DebugBar] dark mode timeline-color-open color text on Debug

[ddevsr]

Description
Before:

After:

Checklist:

• Securely signed commits
• Component(s) with PHPDoc blocks, only if necessary or adds value
• Unit testing, with >80% coverage
• User guide updated
• Conforms to style guide

[kenjis]

SCSS Compilation failed.

Please update scss file, not css.
See https://github.com/codeigniter4/CodeIgniter4/blob/develop/contributing/css.md

Run if [[ -n "$(git status --porcelain 2>/dev/null)" ]]; then
Your changes to the SCSS files did not match the expected CSS output.
diff --git a/system/Debug/Toolbar/Views/toolbar.css b/system/Debug/Toolbar/Views/toolbar.css
index dbcc16c..8a302b4 100644
--- a/system/Debug/Toolbar/Views/toolbar.css
+++ b/system/Debug/Toolbar/Views/toolbar.css
@@ -532,9 +532,6 @@
   #debug-bar .timeline .timer {
     background-color: #DD8615;
   }
-  #debug-bar .timeline .timeline-parent-open td {
-    color: #252525;
-  }
   .debug-view.show-view {
     border-color: #DD8615;
   }
Error: Process completed with exit code 1.

https://github.com/codeigniter4/CodeIgniter4/actions/runs/6107557785/job/16574808670?pr=7907

[kenjis]

LGTM!

[kenjis]

@ddevsr Thank you!

[kenjis]

Reverted by #8125