Added token edit modal, refactored map and token data providers

Refactored image drop code into reusable component as well

src/components/map/SelectMapButton.js

@@ -5,12 +5,12 @@ import SelectMapModal from "../../modals/SelectMapModal";
 import SelectMapIcon from "../../icons/SelectMapIcon";
 
 function SelectMapButton({ onMapChange, onMapStateChange, currentMap }) {
-  const [isAddModalOpen, setIsAddModalOpen] = useState(false);
+  const [isModalOpen, setIsModalOpen] = useState(false);
   function openModal() {
-    setIsAddModalOpen(true);
+    setIsModalOpen(true);
   }
   function closeModal() {
-    setIsAddModalOpen(false);
+    setIsModalOpen(false);
   }
 
   function handleDone() {
@@ -27,7 +27,7 @@ function SelectMapButton({ onMapChange, onMapStateChange, currentMap }) {
         <SelectMapIcon />
       </IconButton>
       <SelectMapModal
-        isOpen={isAddModalOpen}
+        isOpen={isModalOpen}
         onRequestClose={closeModal}
         onDone={handleDone}
         onMapChange={onMapChange}