Fix(Participant): keep talking time after searching

[DorraJaouad]

☑️ Resolves

• Maybe fix Talking time is transferred to other participants #11501 because talking time is correctly stored and the issue in rendering for each Participant, an immediate watch can reduce the number of erroneous info at least.

🖌️ UI Checklist

🖼️ Screenshots / Screencasts

🏚️ Before

Talking-before.mp4

🏡 After

Talking-after.mp4

🚧 Tasks

• Test ?

🏁 Checklist

• 🌏 Tested with Chrome, Firefox and Safari or should not be risky to browser differences
• 🖥️ Tested with Desktop client or should not be risky for it
• 🖌️ Design was reviewed, approved or inspired by the design team
• ⛑️ Tests are included or not possible
• 📗 User documentation in https://github.com/nextcloud/documentation/tree/master/user_manual/talk has been updated or is not required

[DorraJaouad]

Replaced by #11782