Fix: Tabbar - Container opacity when not pinned

[arturpragacz]

Describe the PR

Currently container line disappears when the tab title is changed, even if the tab is not pinned. This PR fixes that.

PR Type

• [ ] Add: Add feature or enhanced.
• [x] Fix: Bug fix or change default values.
• [ ] Clean: Refactoring.
• [ ] Doc: Update docs.

Related Issue

Screenshots

Additional context

[black7375]

Fixed a bug when titlechanged in the general container tab. (confirmed) Thanks!!