This commit changes the incorrect return type message found in the phpstan-baseline.neon file.
Return type of method ShippingTimePeriod::getFrontendView() has been correctly aligned to match
that of TimePeriod::getFrontendView(). This ensures clear and accurate type error messages that
adhere to the standard format.

Updated the error message in the phpstan-baseline to reflect the compatibility between the
getFrontendView methods in ShippingTimePeriod and TimePeriod classes.

This commit resolves multiple issues identified by the phpstan static analysis tool. The erroneous
types and classes in `AbstractShippingEntry.php`, `EventHandler.php`, `ShippingTimePeriod.php` have
been refractored to match the correct class and method signatures. The erroneous sections have been
updated with the appropriate classes and methods for QUI\\\\ERP\\\\Accounting\\\\Invoice,
QUI\\\\ERP\\\\Accounting\\\\Offers, and QUI\\\\ERP\\\\SalesOrders.

Related: #55

This commit includes several changes to improve type handling and the returns of various methods.
It includes changes in files related to Shipping rules and status, as well as tracking. Notable
changes include:

- Refactoring of method signatures and corresponding usages to use type hinting for better error
handling.
- Fixed return types in Factory.php to return more specific types (ShippingRule and ShippingEntry).
- Adjusted the createShippingStatus method to convert `id` to string before passing it to setValue
method in Config.
- Fixed active carrier filtering in Tracking for boolean conversion.
- Modified handling and events related to shipping in ShippingEntry.php and Factory.php.
- Other minor cleanups and refactorings.

Related: #55