Revert "Fix UI polish: scrollbar deselect, web source inline buttons, countdown in Sources, volume click-to-position, meter decay"

This reverts commit dc91c855ef.

Services/Audio/AudioLevelMeter.cs

@@ -1,27 +1,18 @@
 namespace ytLive.Services.Audio;
 
 /// <summary>
-/// Computes the smoothed level (0..1) from captured samples. Pure —
+/// Computes the smoothed mic level (0..1) from captured samples. Pure —
 /// unit-tested; the <see cref="AudioMixer"/> only feeds it and forwards the
 /// result. RMS-based so it tracks perceived loudness, smoothed so the meter
-/// does not flicker. Supports asymmetric smoothing: fast attack (rise) and
-/// configurable decay (fall) so the meter responds quickly to silence.
+/// does not flicker.
 /// </summary>
 public sealed class AudioLevelMeter
 {
+    private const float Smoothing = 0.2f;
     private float _level;
 
     public float Level => _level;
 
-    public AudioLevelMeter(float attackSmoothing = 0.2f, float decaySmoothing = 0.08f)
-    {
-        AttackSmoothing = attackSmoothing;
-        DecaySmoothing = decaySmoothing;
-    }
-
-    public float AttackSmoothing { get; }
-    public float DecaySmoothing { get; }
-
     /// <summary>
     /// Maps a linear level (0..1) onto the meter's display scale: -60 dBFS..0 dBFS
     /// spread linearly across 0..1, with +10 dB of input amplification. Linear RMS
@@ -53,8 +44,7 @@ public sealed class AudioLevelMeter
         }
 
         var rms = (float)Math.Sqrt(sumSquares / count);
-        var smoothing = rms > _level ? AttackSmoothing : DecaySmoothing;
-        _level = _level * (1 - smoothing) + rms * smoothing;
+        _level = _level * (1 - Smoothing) + rms * Smoothing;
         return _level;
     }
 

Services/Audio/AudioMixer.cs

@@ -57,7 +57,7 @@ public sealed class AudioMixer : IDisposable
         _mic = mic;
         _loopback = loopback;
         _meter = new AudioLevelMeter();
-        _loopbackMeter = new AudioLevelMeter(attackSmoothing: 0.2f, decaySmoothing: 0.08f);
+        _loopbackMeter = new AudioLevelMeter();
         _log = log;
         _micGain = micGain;
         _loopbackGain = loopbackGain;