fix(pos): label Order action "Request payment" instead of "Pay" (#2696)

[Wajid-0ne]

Description

Relates to issue: ZEUS-#2696

In the Point of Sale Order view, the primary action button was labelled "Pay"
(general.pay). That button does not pay anything, it navigates to the
Receive / ReceiveEcash screen with autoGenerate: true to generate an
invoice for the customer, i.e. the merchant is requesting payment. The label
was therefore misleading.

This PR relabels the button to "Request payment". A new locale key
pos.views.Order.requestPayment is added to locales/en.json (English source)
and used in views/Order.tsx. Non-English locales fall back to the English
string until translated via Transifex.

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):

On-device

• LDK Node
• Embedded LND

Remote

• LND (REST)
• LND (Lightning Node Connect)
• Core Lightning (CLNRest)
• Nostr Wallet Connect
• LndHub

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

[gemini-code-assist]

Code Review

This pull request updates the button title in the Order view from 'general.pay' to a more specific translation key 'pos.views.Order.requestPayment', and adds the corresponding translation string 'Request payment' to the English locale file. I have no feedback to provide as there are no review comments.

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[Wajid-0ne]

@kaloudis please review and advise

[shubhamkmr04]

tACK

[kaloudis]

I'm torn on this one. If the device is presented to the user at this point - where you allow them to enter the tip or see their itemized bill - then the "Pay" label here makes sense @myxmaster