feat(#1079): add renderer.highlight_clipboard default name, defaults to undercurls (#2410)

* feat(#1079): add highlight NvimTreeCopiedText and NvimTreeCutText

* feat(#1079): add highlight NvimTreeCopiedText and NvimTreeCutText

* feat(#1079): node may not be present in copy and cut

* feat(#1079): add renderer.highlight_clipboard

* feat(#1079): renderer.highlight_clipboard takes options, style cut/copy HL

* feat(#1079): renderer.highlight_clipboard takes options, style cut/copy HL

* feat(#1079): use an enum for highlight position

* feat(#1079): diagnostics uses _append_highlight

lua/nvim-tree/utils.lua

@@ -425,12 +425,18 @@ function M.array_shallow_clone(array)
   return to
 end
 
--- remove item from array if it exists
+--- Remove and return item from array if present.
+--- @param array table
+--- @param item any
+--- @return any|nil removed
 function M.array_remove(array, item)
+  if not array then
+    return nil
+  end
   for i, v in ipairs(array) do
     if v == item then
       table.remove(array, i)
-      break
+      return v
     end
   end
 end