Update clipboard checks

[Anny]

As highlighted by @feroviktor:

wallet/src/components/index/CreateModal.vue

Lines 178 to 181 in 37fdbfa

     copyToClipboard(input) { 
       if (!this.canCopy) window.alert('Clipboard unavailable. Please copy-paste manually.') 
       return navigator.clipboard.writeText(input) 
     }, 

The canCopy component data isn't necessary here as navigator.clipboard is globally accessible. This should be updated in all instances similarly to edge/explorer#139:

1. Remove canCopy data from component
2. Substitute !!navigator.clipboard as conditional
3. Ensure navigator.clipboard is only accessed when available

[Anny]

@feroviktor Please take note of my latest feedback on the use of navigator.clipboard - specifically, write it this way:

if (!!navigator.clipboard) {
  return navigator.clipboard.writeText(input)
}
window.alert('Clipboard unavailable. Please copy-paste manually.')

[Anny]

Closed prematurely - I need to review the PR first!

[Anny]

Merged to develop.