feat!: Support Electron 7 (#250)

BREAKING CHANGE:

- Drop support for Electron 4, 5, and 6.
- Remove deprecated passing string argument to `menubar`, use `dir` field instead
```diff
- menubar('/home/me/MY_ABSOLUTE_PATH');
+ menubar({ dir: '/home/me/MY_ABSOLUTE_PATH' });
```
- Remove deprecated passing `x`, `y`, `height`, `width`, `alwaysOnTop` fields to `menubar`, pass them instead into the `browserWindow` field
```diff
- menubar({
-   x: 12,
-   y: 34,
-   height: 500,
-   width: 320,
-   alwaysOnTop: true
- });
+ menubar({
+   browserWindow: {
+     x: 12,
+     y: 34,
+     height: 500,
+     width: 320,
+     alwaysOnTop: true
+  }
+ });
```

README.md

@@ -113,6 +113,14 @@ The `Menubar` class is an event emitter:
 - `after-close` - after the `.window` (BrowserWindow) property has been deleted
 - `focus-lost` - emitted if always-on-top option is set and the user clicks away
 
+## Compatibility with Electron
+
+| menubar  | Electron                                                                                                                                             |
+| -------- | ---------------------------------------------------------------------------------------------------------------------------------------------------- |
+| 7.x.x    | 7.x.x                                                                                                                                                |
+| 6.x.x    | 4.x.x \| 5.x.x \| 6.x.x (not recommended for [security reasons](https://electronjs.org/docs/tutorial/security#17-use-a-current-version-of-electron)) |
+| <= 5.x.x | Please, _please_ don't use these old versions                                                                                                        |
+
 ## API Docs
 
 See the reference [API docs](./docs/globals.md).

examples/package.json

@@ -1,14 +1,14 @@
 {
   "name": "example-menubar",
   "version": "0.1.0",
-  "description": "Example menubar electron app",
+  "description": "Examples of menubar electron apps",
   "private": true,
   "workspaces": [
     "arrow",
     "hello-world",
     "native-menu"
   ],
   "devDependencies": {
-    "electron": "^6.0.0"
+    "electron": "^7.0.0"
   }
 }