View only mode

[Sadwhy3]

Please confirm the following

• I've checked the current issues for duplicate issues.
• I've requested a single (only one) feature/change in this issue. It complies with the One Request Per GitHub Issue (ORPGI) rule.
• My issue is well-defined and aligns with the goal of the project.

Description

Support for a read-only mode. In which the app reads everything that's in the chat and displays it. And with uploads disabled.