hide crosshair mark on mouseleave

[illetid]

Type of PR: bugfix

[github-actions]

size-limit report 📦

Path	Size
ESM	44.81 KB (+0.07% 🔺)
ESM createChart	36.84 KB (-0.03% 🔽)
ESM createChartEx	35.54 KB (-0.08% 🔽)
ESM createYieldCurveChart	37 KB (-0.01% 🔽)
ESM createOptionsChart	35.76 KB (-0.11% 🔽)
Standalone-ESM	46.27 KB (+0.02% 🔺)
Standalone	46.27 KB (+0.09% 🔺)
Plugin: Text Watermark	1.87 KB (0%)
Plugin: Image Watermark	1.69 KB (0%)
Plugin: Series Markers	3.98 KB (0%)
Series: LineSeries	2.54 KB (-0.04% 🔽)
Series: BaselineSeries	3.19 KB (-0.31% 🔽)
Series: AreaSeries	3.11 KB (-0.32% 🔽)
Series: BarSeries	2.14 KB (-0.05% 🔽)
Series: CandlestickSeries	2.43 KB (+0.13% 🔺)
Series: HistogramSeries	2.19 KB (+0.14% 🔺)
Plugin: UpDownMarkersPrimitive	2.37 KB (0%)

[illetid]

@SlicedSilver previous test catch the issue, so I didn't add new one