Create link to TEI source code

[ttechnicus]

• Determine if the contents have a specific TEI source
• If yes, the window header should have a custom button which leads the user to the TEI source

[ttechnicus]

Custom controls in winbox: https://github.com/nextapps-de/winbox#custom-controls

[ttechnicus]

Point in code to start from: https://github.com/acdh-oeaw/vicav-vue3/blob/9c5040c42038eda83b2eeb0ef437e090c63fceb2/stores/use-windows-store.ts#L196

[ttechnicus]

Merged fresh develop into branch 97… https://github.com/acdh-oeaw/vicav-vue3/pull/99/commits/94e7202f42135cc53f9ba48750ee79444d794fd0

[ttechnicus]

A note from a discussion with @simar0at : Url of the TEI source is now in params.teiSource in the menu items coming from the project info endpoint.