add precommit hook for linting and automatic eslint fixes + update eslint packages (#2862)

* chore: add precommit hook for eslint fixes, fix linting issues
* chore: add eslint import sort plugin

packages/core/src/helpers/splitExtensions.ts

@@ -1,7 +1,7 @@
-import { Extensions } from '../types'
 import { Extension } from '../Extension'
-import { Node } from '../Node'
 import { Mark } from '../Mark'
+import { Node } from '../Node'
+import { Extensions } from '../types'
 
 export function splitExtensions(extensions: Extensions) {
   const baseExtensions = extensions.filter(extension => extension.type === 'extension') as Extension[]