Refactor package command to use ThemeCommand's run method

Previously, theme package command implemented its
own run logic. This commit refactors package to use
ThemeCommand's base run() method. This will help to
standardize command architecture

Author: dejmedus

packages/theme/src/cli/commands/theme/package.ts

@@ -2,7 +2,9 @@ import {themeFlags} from '../../flags.js'
 import ThemeCommand from '../../utilities/theme-command.js'
 import {packageTheme} from '../../services/package.js'
 import {globalFlags} from '@shopify/cli-kit/node/cli'
+import {InferredFlags} from '@oclif/core/interfaces'
 
+type PackageFlags = InferredFlags<typeof Package.flags>
 export default class Package extends ThemeCommand {
   static summary = 'Package your theme into a .zip file, ready to upload to the Online Store.'
 
@@ -21,8 +23,7 @@ export default class Package extends ThemeCommand {
     path: themeFlags.path,
   }
 
-  async run(): Promise<void> {
-    const {flags} = await this.parse(Package)
+  async command(flags: PackageFlags) {
     await packageTheme(flags.path)
   }
 }