fix: try catch removeChild inside attach

Author: aminya

lib/main.js

@@ -166,7 +166,6 @@ export function toggle () {
     if (wasMaximized) {
       atom.maximize()
     }
-
   } else {
     toggled = true
     initSubscriptions()

lib/minimap-element.js

@@ -429,7 +429,12 @@ class MinimapElement {
     if (minimaps.length) {
       Array.prototype.forEach.call(minimaps, (el) => {
         el.destroy()
-        container.removeChild(el)
+        try {
+          container.removeChild(el)
+        } catch (e) {
+          // TODO: ignore for now
+          // https://github.com/atom-minimap/minimap/issues/766#issuecomment-762496374
+        }
       })
     }
     container.appendChild(this)