Bugfix: fix exception crash

Updates include:

• NumberForException: handle exception in Card Fragment when inputting card expiry details.
• NullPointerException: Check if Card Fragment is added to HostActivity before navigating to the next screen.
• IllegalStateException: Check if Card Fragment is added to HostActivity before displaying toast message using requireContext().

Bugfix: add alert dialog missing style

Changes include:

• Fixing alert dialog bug.

Added dialog styling support

2.1.39

Merge pull request #290 from FredDominant/bug/fix-text-invisible-on-m…

Updated PWB bank lst

Merge pull request #281 from FredDominant/ft/update-pwbt-bank-list

update banks list for pay with account

Updated network to include Airtel and Zamtel

2.1.37

Merge pull request #277 from FredDominant/ft/update-zambian-mobile-mo…

Version and dev docs update

Merge pull request #266 from FredDominant/chore/bump-to-2.1.36

bump version to 2.1.36

Updated package dependencies

update app dependencies

Merged pull request #264 from FredDominant/ft/update-dependencies

Bug fixes

2.1.34

Bump version to 2.1.34

Update Francophone mobile money for Cameroon

2.1.33

Bump version to 2.1.33

Update Banks for USSD charge

2.1.32.2

Bump version to 2.1.32