[Compatibility] vue 2.7.8

[samydoesit]

Hello,
i am having a hard time upgrading this plugin.

Since v-mapbox 1.7.3 and vue 2.6.13 our markers are gone.
TypeError: Cannot read properties of undefined (reading 'Marker') at a.mounted (v-mapbox.esm.js:1255:35)

Since v-mapbox 1.11.3 and vue 2.7.8 i am getting these errors:

TypeError: Cannot read properties of undefined (reading 'observable')
    at G (vue-composition-api.mjs:825:13)...
    
    
v-mapbox.esm.js:1291 Uncaught (in promise) TypeError: Cannot read properties of undefined (reading 'container')
    at v-mapbox.esm.js:1291:42

I am not excatly sure why this happens. Can somebody help?

[vinayakkulkarni]

• Ref PR: fix: upgrade to vue 2.7 and remove @vue/composition-api #1307