[Bug]: Position in tab stack not conserverd

Pre-Submission Checklist

• I have checked the existing/closed issues to ensure this issue has not already been reported.
• I am using the latest supported version of the browser.
• I have tried disabling all browser extensions/add-ons to rule out interference from these.
• I have tried clearing the browser cache and cookies.
• I have checked with a new profile and the issue still occurs.
• I have provided detailed step-by-step instructions on how to reproduce the issue.
• I have included relevant screenshots or console outputs.
• I have checked that this problem is not occurring in the latest version of Firefox.
• This issue is specific to this browser and does not occur in other browsers.

Bug Summary

Then having a tab stack with and overflowing amount of tabs (for me about 30+) the current scrolling position inside a tab stack is not conserved when opening a tab outside this stack and returning to it. This is especially annoying with #2736 in mind when having a lot of tabs in a stack.

Reproduction Steps

1. Open Floorp
2. Open a tab stack with enough tabs to overflow
3. switch to a tab outside the stack
4. switch back to the stack to see that it is scrolled to the "left"/beginning and not the latest position

Expected Behavior

It should preserve the current position inside a tab stack

Actual Behavior

The position is not conserved, only the last open tab

Screenshots

https://github.com/user-attachments/assets/954f558e-3dea-494b-91cf-d71bf88c0cd4

Browser Version

Version [email protected]

Operating System

Fedora 44

Additional Context

No response