Bug fixes

Issue #3067186: Installing leaflet 8x-1.12 on Drupal 8.7.3 causes all leaflet widget functionality t be removed
Issue #3063205 by yanniboi: Allow views geofield to be extended field type
Better Implementation of the Zoom Finer Option, in the Leaflet Formatter and Leaflet View Style Settings
Better Js coding quality/standards

Includes the following fixed issues since 8.x-1.0:

Set default settings for a fresh install
Add hosting support
Add search form support
Fix hosting support issues
Bug fixes and other minor improvements

Better info.yml to avoid installing on bad PHP-versions.

Issue #3067193 by idebr: Add minimum PHP requirement to info.yml, composer.json