Leo panel stuck in open state

[darkdh]

Description

https://github.com/user-attachments/assets/1d2d4a7e-aefe-4a8a-a8a3-57c896760e49

Steps to reproduce

1. Have at least two tabs
2. On tab A, open Leo panel and close the tab
3. On tab B, Leo panel can’t be opened
4. Open new tab, Leo panel can’t be opened

Actual result

Leo panel indicator shows it is open on other tab.

Expected result

Leo panel can be opened/closed on other tab with correct open indicator

Reproduces how often

Easily reproduced

Brave version (brave://version info)

Brave	1.72.22 Chromium: 129.0.6668.59 (Official Build) nightly (x86_64)
Revision	a2054d5f1e83d781a52e1baee7a2f3307250c1d6
OS	macOS Version 14.7 (Build 23H124)

Channel information

• [x] release (stable)
• [X] beta
• [X] nightly

Reproducibility

• [ ] with Brave Shields disabled
• [ ] with Brave Rewards disabled
• [ ] in the latest version of Chrome

Miscellaneous information

This effect persists unless I use a new browser window or use toolbar Leo button to toggle on and off

[MadhaviSeelam]

Reproduced the issue as well in Win 11 x64

Brave | 1.72.22 Chromium: 129.0.6668.59 (Official Build) nightly (64-bit)
-- | --
Revision | a2054d5f1e83d781a52e1baee7a2f3307250c1d6
OS | Windows 11 Version 23H2 (Build 22631.4169)

[MadhaviSeelam]

However this is still an issue in current release 1.70.117 if Leo icon is clicked via Sidebar. No issues with Leo icon on the toolbar

@mattmcalister @rebron cc: @brave/qa-team

Brave | 1.70.117 Chromium: 129.0.6668.59 (Official Build) (64-bit)
-- | --
Revision | 5d4da8332eb061f79bb47ec5b0bf595600fdcd55
OS | Windows 11 Version 23H2 (Build 22631.4169)

https://github.com/user-attachments/assets/011bbf59-61d9-41ee-b48d-04ce2082f41a