feat: allow the hash param to be a string or a boolean.

[francois2metz]

Since the version 1.5.0, vue-mapbox allow the hash param to be a boolean or a string.

Same code as soal/vue-mapbox#155

[vinayakkulkarni]

Hey @francois2metz,

Thanks for this PR, but you need to rebase and reword your commit as this repo follows the commitlint convention.

$ git rebase -i HEAD~1

Then in the vim editor, reword

- Allow the hash param to be a string or a boolean.
+ feat: allow the hash param to be string or boolean

Then push it to your fork

$ git push --force

[vinayakkulkarni]

LGTM