Allow entering custom fee if loading fees from mempool fails

[myxmaster]

Description

This fixes #2168.

Additionally fixed displaying gifs by updating android library (necessary for react native 0.73).

This pull request is categorized as a:

• New feature
• Bug fix
• Code refactor
• Configuration change
• Locales update
• Quality assurance
• Other

Checklist

• I’ve run yarn run tsc and made sure my code compiles correctly
• I’ve run yarn run lint and made sure my code didn’t contain any problematic patterns
• I’ve run yarn run prettier and made sure my code is formatted correctly
• I’ve run yarn run test and made sure all of the tests pass

Testing

If you modified or added a utility file, did you add new unit tests?

• No, I’m a fool
• Yes
• N/A

I have tested this PR on the following platforms (please specify OS version and phone model/VM):

• Android
• iOS

I have tested this PR with the following types of nodes (please specify node version and API version where appropriate):

• Embedded LND
• LND (REST)
• LND (Lightning Node Connect)
• Core Lightning (c-lightning-REST)
• LndHub
• [DEPRECATED] Core Lightning (Spark)
• [DEPRECATED] Eclair

Locales

• I’ve added new locale text that requires translations
• I’m aware that new translations should be made on the ZEUS Transfix page and not directly to this repo

Third Party Dependencies and Packages

• Contributors will need to run yarn after this PR is merged in
• 3rd party dependencies have been modified:
  • verify that package.json and yarn.lock have been properly updated
  • verify that dependencies are installed for both iOS and Android platforms
• Contributors will need to run yarn ra after this PR is merged in

Other:

• Changes were made that require an update to the README
• Changes were made that require an update to onboarding

[kaloudis]

looking good. clean code and approach.

one nit: when reloading, the loading and error boxes have different heights, pushing the text input field to different heights. This can be cleaned up by defining fixed heights for the View boxes for the loading indicator and the error message

[myxmaster]

Fixed margin, so loading and error now doesn't push the text input field.

[kaloudis]

tACK