Combine imports from map

The syntax is a bit odd. Background here:
tc39/proposal-type-annotations#16

Author: kevinschaul

src/ui/control/fullscreen_control.ts

@@ -3,9 +3,8 @@ import DOM from '../../util/dom';
 import {warnOnce} from '../../util/util';
 
 import {Event, Evented} from '../../util/evented';
-import type Map from '../map';
+import type {default as Map, GestureOptions} from '../map';
 import type {IControl} from './control';
-import type {GestureOptions} from '../map';
 
 type FullscreenOptions = {
     container?: HTMLElement;