Fix + update external modal (#1106)

* Update external action modal. Uses Micromodal. Closes #1020

* refactor modal handling to isolate loading in modal component

* modal style cleanup

* Remove log

Co-authored-by: Ginger Wong <omqmail@gmail.com>

webroot/js/web_modules/import-map.json

@@ -5,6 +5,7 @@
     "@videojs/themes/fantasy/index.css": "./@videojs/themes/fantasy/index.css",
     "htm": "./htm.js",
     "mark.js/dist/mark.es6.min.js": "./markjs/dist/mark.es6.min.js",
+    "micromodal/dist/micromodal.min.js": "./micromodal/dist/micromodal.min.js",
     "preact": "./preact.js",
     "tailwindcss/dist/tailwind.min.css": "./tailwindcss/dist/tailwind.min.css",
     "video.js": "./video.js/core.js",