feat: network selector on send

[Tuditi]

Summary

Added a network selector to the send form popup

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Changelog

- Added a network selector

Relevant Issues

closes: #4926

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Testing

Platforms

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• Desktop
  • MacOS
  • Linux
  • Windows
• Mobile
  • iOS
  • Android

Instructions

Please describe the specific instructions, configurations, and/or test cases necessary to test and verify that your changes work as intended.

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Checklist

Please tick all of the following boxes that are relevant to your changes.

• I have followed the contribution guidelines for this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have added or modified tests that prove my changes work as intended
• I have verified that new and existing unit tests pass locally with my changes
• I have verified that my latest changes pass CI workflows for testing and linting
• I have made corresponding changes to the documentation

[maxwellmattryan]

Left some specific comments / questions, but generally:

• Not sure if related to this PR but the error isn't displayed in the UI (beneath the address input) whenever no address is entered and you try to click "Send"
• Definitely not related to this PR, but the Figma designs say "Recipient" whereas currently it's saying "Alias" for the address inputs below the network selector.

Code and UI looks good though!

[MarkNerdi996]

Works and looks really good,
left a few small comments

Preparing our pair programming sesh ;)