Enhance audio processing with popup feedback and UI adjustments

[ItsSimko]

@sourcery-ai review

[sourcery-ai[bot]]

Reviewer's Guide by Sourcery

This PR enhances the real-time audio processing functionality by improving the audio chunk handling, adding user feedback during processing, and adjusting UI elements. The main changes focus on ensuring no audio data is lost during recording and providing better visual feedback to users.

Sequence diagram for audio recording and processing

sequenceDiagram
    actor User
    participant Client as FreeScribe Client
    participant Stream as Audio Stream
    participant Queue as Audio Queue
    participant Popup as Processing Popup

    User->>Client: Start Recording
    Client->>Stream: Open Stream
    loop Recording
        Stream->>Client: Audio Data
        Client->>Queue: Add to Queue if not silent
    end
    User->>Client: Stop Recording
    Client->>Queue: Send remaining audio chunks
    Client->>Popup: Show Processing Popup
    loop Processing
        Queue->>Client: Process Audio
    end
    Popup-->>Client: Close Popup
    Client->>Stream: Close Stream
    Client->>User: Recording Complete

File-Level Changes

Change	Details	Files
Improved real-time audio processing logic	Added record duration tracking alongside silent duration Modified chunk processing conditions to use both record duration and silent duration Added handling of remaining audio chunks when recording stops Separated realtime thread creation from recording toggle	src/FreeScribe.client/client.py
Added processing feedback popup	Created a new popup window that appears when stopping recording Implemented animated ellipsis to indicate ongoing processing Added wait mechanism to ensure all audio chunks are processed before closing	src/FreeScribe.client/client.py
Adjusted UI layout and settings	Modified AudioMeter widget layout and threshold line positioning Updated default silence cut-off threshold value Simplified recording button command binding	src/FreeScribe.client/UI/Widgets/AudioMeter.py src/FreeScribe.client/UI/SettingsWindow.py src/FreeScribe.client/client.py

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[sweep-ai[bot]]

Hey @ItsSimko, here is an example of how you can ask me to improve this pull request:

@sweep Add unit tests for the `record_audio` function to verify the new audio chunk processing logic, specifically testing:
- Recording duration calculation
- Silent duration tracking
- Proper chunking of audio data when minimum duration and silence thresholds are met
- Handling of remaining audio chunks when recording stops

:book: For more information on how to use Sweep, please read our documentation.

[sweep-ai[bot]]

Hey @ItsSimko, here is an example of how you can ask me to improve this pull request:

@sweep Add unit tests for the audio chunk processing logic in `record_audio()` to verify that remaining audio chunks are properly sent to the queue when recording stops.

:book: For more information on how to use Sweep, please read our documentation.