Add smooth animation to voice messages play progress (#7698)

* Add linear animation to voice message playback progress

Instead of animating the small `progress` value changes, calculate an animation for the range `maxProgress - progress`, with a linear interpolator so it's completely smooth. Previously, the progress was updated in 'steps' that were quite noticeable.

libraries/voiceplayer/impl/src/main/kotlin/io/element/android/libraries/voiceplayer/impl/VoiceMessagePresenter.kt

@@ -135,7 +135,9 @@ class VoiceMessagePresenter(
             progress = progress,
             time = time,
             showCursor = showCursor,
+            isPlaying = playerState.isPlaying,
             playbackSpeed = VoicePlayerConfig.availablePlaybackSpeeds[playbackSpeedIndex],
+            durationMs = duration,
             eventSink = ::handleEvent,
         )
     }

libraries/voiceplayer/impl/src/test/kotlin/io/element/android/libraries/voiceplayer/impl/VoiceMessagePresenterTest.kt

@@ -34,6 +34,8 @@ class VoiceMessagePresenterTest {
                 assertThat(it.buttonType).isEqualTo(VoiceMessageState.ButtonType.Play)
                 assertThat(it.progress).isEqualTo(0f)
                 assertThat(it.time).isEqualTo("1:01")
+                assertThat(it.isPlaying).isFalse()
+                assertThat(it.durationMs).isEqualTo(61_000)
             }
         }
     }