fix: See all button closing panel

Fixes #1700

umap/static/umap/js/umap.popup.js

@@ -59,6 +59,9 @@ U.Popup.Panel = U.Popup.extend({
     L.DomUtil.create('i', 'umap-icon-16 umap-list', button)
     const label = L.DomUtil.create('span', '', button)
     label.textContent = label.title = L._('See all')
+    // Fixme: remove me when this is merged and released
+    // https://github.com/Leaflet/Leaflet/pull/9052
+    L.DomEvent.disableClickPropagation(button)
     L.DomEvent.on(button, 'click', this.feature.map.openBrowser, this.feature.map)
     return button
   },