Updates release notes for 23.9

[JorgeMucientes]

Prepares release notes for version 23.9. Based on the following content:

- [Internal] Updated JITM banner design and migrated to Material 3 [https://github.com/woocommerce/woocommerce-android/pull/15155]
- [*] Fixed First Product Created celebration dialog layout on tablets to eliminate excessive white space [https://github.com/woocommerce/woocommerce-android/pull/15116]
- [Internal][Woo POS] Add analytics tracking for stale catalog warning dialog display [https://github.com/woocommerce/woocommerce-android/pull/15055]
- [*][Woo POS] Fixed loading indicator colors to match the design [https://github.com/woocommerce/woocommerce-android/pull/15043]
- [**][Woo POS] Fixed crash when deleted products are in cart during checkout [https://github.com/woocommerce/woocommerce-android/pull/15083]
- [*][Woo POS] Display specific error when removed variation is added to the cart [https://github.com/woocommerce/woocommerce-android/pull/15076]
- [*] Fixed a rare crash in the refund flow [https://github.com/woocommerce/woocommerce-android/pull/15109]
- [*][Woo POS] Prepopulate orders cache after opening POS to improve performance [https://github.com/woocommerce/woocommerce-android/pull/15066]
- [*][Internal] Migrated legacy Material Icons to Material Symbols [https://github.com/woocommerce/woocommerce-android/pull/15081]
- [*] Fix widget sizing issues and improve refresh rate upon switching site or logging out [https://github.com/woocommerce/woocommerce-android/pull/15127]
- [*] Unified transition animations across screens [https://github.com/woocommerce/woocommerce-android/pull/15128]
- [*] Fixed a rare NullPointerException crash on the Dashboard screen [https://github.com/woocommerce/woocommerce-android/pull/15138]
- [*][Internal] Remove the network call to the Woo Services plugin when it’s not supported [https://github.com/woocommerce/woocommerce-android/pull/15142]

[dangermattic]

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[malinajirka]

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