Add leaflet

Fix build, make map component async and move computed to getter

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

js/package-lock.json

@@ -1010,6 +1010,12 @@
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       "dev": true
     },
+    "@types/geojson": {
+      "version": "7946.0.7",
+      "resolved": "https://registry.npmjs.org/@types/geojson/-/geojson-7946.0.7.tgz",
+      "integrity": "sha512-wE2v81i4C4Ol09RtsWFAqg3BUitWbHSpSlIo+bNdsCJijO9sjme+zm+73ZMCa/qMC8UEERxzGbvmr1cffo2SiQ==",
+      "dev": true
+    },
     "@types/glob": {
       "version": "7.1.1",
       "resolved": "https://registry.npmjs.org/@types/glob/-/glob-7.1.1.tgz",
@@ -1021,6 +1027,15 @@
         "@types/node": "*"
       }
     },
+    "@types/leaflet": {
+      "version": "1.4.3",
+      "resolved": "https://registry.npmjs.org/@types/leaflet/-/leaflet-1.4.3.tgz",
+      "integrity": "sha512-jFRBSsPHi1EwQSwrN0cOJLdPhwOZsRl4IMxvm/2ShLh0YM5GfCtQXCzsrv8RE7DWL+AykXdYSAd9bFLWbZT4CQ==",
+      "dev": true,
+      "requires": {
+        "@types/geojson": "*"
+      }
+    },
     "@types/lodash": {
       "version": "4.14.123",
       "resolved": "https://registry.npmjs.org/@types/lodash/-/lodash-4.14.123.tgz",
@@ -8044,6 +8059,11 @@
         "invert-kv": "^1.0.0"
       }
     },
+    "leaflet": {
+      "version": "1.4.0",
+      "resolved": "https://registry.npmjs.org/leaflet/-/leaflet-1.4.0.tgz",
+      "integrity": "sha512-x9j9tGY1+PDLN9pcWTx9/y6C5nezoTMB8BLK5jTakx+H7bPlnbCHfi9Hjg+Qt36sgDz/cb9lrSpNQXmk45Tvhw=="
+    },
     "levn": {
       "version": "0.3.0",
       "resolved": "https://registry.npmjs.org/levn/-/levn-0.3.0.tgz",
@@ -13973,6 +13993,11 @@
       "resolved": "https://registry.npmjs.org/vue-template-es2015-compiler/-/vue-template-es2015-compiler-1.6.0.tgz",
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     },
+    "vue2-leaflet": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/vue2-leaflet/-/vue2-leaflet-2.0.2.tgz",
+      "integrity": "sha512-8KAU0mbUp5CDwb5NBlpEoyCO/x+Rv1KeA4599HJqpHeOrzY0+PBoUabM80riUUWJWGhRi3yhV4DJ8Kf1QHRelQ=="
+    },
     "vuex": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/vuex/-/vuex-3.1.0.tgz",