Change the `clipboardText` property requirement inside the panel_type component

Currently our panel_type component uses clipboardText as a required property, some cases do not require the use of this property as the usage of this component will not allow the use of the feature that links the charts to issues

From the original discussion in this merge request

@jivanvl panel_type requires this property, I could switch this up to a non required property and add a default value if that makes more sense, what do you think?

@ClemMakesApps Interesting. We can create a follow up issue to address this. Can you make the issue?