REFACTORED: Timeline - Update stats to match cluster and singleton breakdowns as shown in the canvas

[roxycintron]

Update the statistical display so that cluster and singleton counts update live as the timeline progresses, aligning with the visual representations in the canvas. Currently, only the Link counts update according to the canvas during timeline playback.

Fig.1 Statistical display before timeline playback (SNP link threshold = 8)

Fig. 2 Statistical display during timeline playback (t=Jul 1)

Fig. 3 Statistical display during timeline playback (t=Jul 18)