modify SessionToken to be compatible with Checkout UI Extension

[jeroendelau]

Checkout UI Extensions have session tokens, but they vary slightly from the token provided by Shopify Apps.

App Session Tokens
Checkout Extension Session Tokens

Key differences:

• iss, sid are not part of the token
• sub, optional
• dest: has no protocol prefix

By merging this PR people should be able to use session tokens obtained through useSessionToken, to interact with the back-end without modification.

[Kyon147]

@jeroendelau are you able to add a wiki page on how this would be use for the checkout extension vs the main laravel application?

[jeroendelau]

absolutely, I will try to get something in there before the end of the week.

[Kyon147]

@jeroendelau great work on this.
Just checking on this, do you need anything from me to get this passed with the check "linting" and then we can get it merged in

[jeroendelau]

No, sorry, simply had no time. Will fix

[jeroendelau]

I think I fixed all linter issues, but I'm having trouble reproducing the same error locally.
Added a wiki page here: https://github.com/Kyon147/laravel-shopify/wiki/Working-with-App-Extensions

[jeroendelau]

Added in separate PR #346

The reason I couldn't get the linter to fail was because the local version does not match the version of github actions.

github action 3.0.0
composer ^3.0 (which results in 3.59.3).

After setting composer to 3.0.0 the errors matched.

Suggest adjusting the lint action to use the composer version so mismatch can't happen.

name: PHP Lint

on: [ push, pull_request ]

jobs:
  lint:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout code
        uses: actions/checkout@v2

      - name: Setup PHP
        uses: shivammathur/setup-php@v2
        with:
          php-version: '8.2'
          coverage: none

      - name: Get Composer cache directory
        id: cache-composer
        run: echo "dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT

      - name: Restore Composer cache
        uses: actions/cache@v3
        with:
          path: ${{ steps.cache-composer.outputs.dir }}
          key: ${{ runner.os }}-${{ github.ref_name }}-composer-${{ hashFiles('**/composer.lock') }}

      - name: Install Composer dependencies
        run: |
          composer install --no-interaction --prefer-dist

      - name: Check for code style violation with PHP-CS-Fixer
        run: vendor/bin/php-cs-fixer fix --diff

[Kyon147]

Looks great