Adds User email check when sending Asset acceptance reminder

[Godmartinz]

if you sent an asset acceptance reminder to a user and they didnt have an email it would default to sending the default notification you had setup under integrations.

Description

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Fixes # (issue)

Type of change

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• [ x] Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

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• Test A
• Test B

Test Configuration:

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Checklist:

• I have read the Contributing documentation available here: https://snipe-it.readme.io/docs/contributing-overview
• I have formatted this PR according to the project guidelines: https://snipe-it.readme.io/docs/contributing-overview#pull-request-guidelines
• My code follows the style guidelines of 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 made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

[what-the-diff]

PR Summary

• Improved Error Management in Reports Controller
  Added mechanisms in the ReportsController.php to guide user navigation. The system now checks if an assigned asset has an associated email address. If not, it redirects users to a specific space with an error message, ensuring users are always informed.

• Feedback Enhancement for Successful Actions
  To improve user experience, the ReportsController.php now redirects users to a unique route with a success message after certain actions. Users will receive more direct feedback on the status of their operations.

• Localization Update
  An additional translation string has been incorporated in general.php within the en-US language folder for better communication. The new string ensures users understand there's no email associated with their user account when relevant.