fix is-fancy logic:
fix is-fancy logic:

- if trace has markers and any array style attr -> fancy
- if trace has markers and a non-circle symbol -> fancy
- if trace has lines and connecgaps false -> fancy

plotly/plotly.js,iongroup/plotly.js,plotly/plotly.js,aburato/plotly.js,etpinard/plotly.js,plotly/plotly.js,etpinard/plotly.js,plotly/plotly.js,asolagmbh/plotly.js,aburato/plotly.js,etpinard/plotly.js,asolagmbh/plotly.js,asolagmbh/plotly.js,iongroup/plotly.js,iongroup/plotly.js