Several layout improvements

[myxmaster]

Description

There is still work to do after this PR, but this is a step towards more consistent and cleaner layouting.

General:
Same overall padding/margin for Invoice, Payment, Privacy and Lightning Address Settings
 

Payment Settings/Invoices Settings/Privacy Settings/Lightning Address Settings/Receive:

• improved styling to avoid problems in case of smaller screens/larger font size/longer locale strings (non english)
  -> switch cannot be pushed out of display view or overlap with text anymore
  -> switch is now correctly centered vertically in case text has more than 1 line
• removed <Row> component in <Text> component to not break layout if explainer is used
   

Additionally:

• Payment Settings: Lightning - Default Fee Limit: "sats" now has more space to the right
• Lightning Address Settings: changed text color to themeColor('secondaryText') to align with other font colors in Settings
• Invoices Settings: replaced outer View wrapper with ScrollView (in case scrolling is needed)

Before:

After:

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 (CLNRest)
• LndHub
• [DEPRECATED] Core Lightning (c-lightning-REST)
• [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

Other:

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