Improve display of long layer names (Fixes #32)

src/scss/leaflet/_controls.scss

@@ -153,6 +153,17 @@
 		top: 0;
 		left: 6rem;
 		overflow: auto;
+		max-width: calc(100vw - 14rem);
+    	box-sizing: border-box;
+
+		@media screen and (max-width: 400px) {
+			max-width: calc(100vw - 13rem);
+		}
+
+		.leaflet-control-layers-overlays {
+			width: 100%;
+    		max-width: 30rem;
+		}
 
 		.layer {
 			cursor: pointer;

src/scss/style.scss

@@ -154,6 +154,10 @@ input {
 	span {
 		color: var(--text-subtle);
 		padding-left: 3rem;
+		white-space: nowrap;
+		overflow: hidden;
+		text-overflow: ellipsis;
+		display: block;
 	}
 }