bump atom to 1.58.0

add icecream17 as author, bump typescript version, grammar

Initial commit; just for creating a pr.
Note that even though there are docs online, they might be misleading: atom/flight-manual.atom.io#736
So I'll use the codebase itself: https://github.com/atom/atom/tree/v1.58.0

types/atom/index.d.ts

@@ -1,14 +1,15 @@
-// Type definitions for non-npm package Atom 1.40
+// Type definitions for non-npm package Atom 1.58.0
 // Project: https://github.com/atom/atom
 // Definitions by: GlenCFL <https://github.com/GlenCFL>
 //                 smhxx <https://github.com/smhxx>
 //                 lierdakil <https://github.com/lierdakil>
 //                 aminya <https://github.com/aminya>
+//                 icecream17 <https://github.com/icecream17>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-// TypeScript Version: 2.3
+// TypeScript Version: 4.4
 
-// NOTE: only those classes exported within this file should be retain that status below.
-// https://github.com/atom/atom/blob/v1.40.0/exports/atom.js
+// NOTE: only classes exported within this file should be retained below.
+// https://github.com/atom/atom/blob/v1.58.0/exports/atom.js
 
 /// <reference types="node" />