feat(routing): improve auto-fill of identifier

[Tanveer-rajpurohit]

What does this PR do?

This PR improves the auto-fill functionality of the "Identifier" field by ensuring all input is converted to lowercase and spaces are automatically replaced with underscores (_).

• Fixes [CAL-5245] routing: improve auto-fill of "Identifier" with lowercase only and replace space " " with "_" #19640
• Fixes CAL-5245

/claim #19640

• /claim CAL-5245
  Mandatory Tasks

Self-reviewed the code for quality and consistency.
Documentation changes are not required (N/A).
Automated tests are in place to verify the fix and ensure feature functionality.
Testing Instructions

Navigate to the form with the "Identifier" field.
Input text with mixed cases and spaces.
Verify that the field auto-fills with lowercase text and replaces spaces with underscores.
Ensure no unexpected behavior or errors occur.
Checklist

Code follows the project's style guidelines.
Code is well-commented and easy to understand.
No new warnings introduced.

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[github-actions]

Hey there and thank you for opening this pull request! 👋🏼

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Details:

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 - fix: A bug fix
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[graphite-app]

Graphite Automations

"Add consumer team as reviewer" took an action on this PR • (03/01/25)

1 reviewer was added to this PR based on Keith Williams's automation.

"Add community label" took an action on this PR • (03/01/25)

1 label was added to this PR based on Keith Williams's automation.

[anikdhabal]

@Tanveer-rajpurohit thanks for your work. Go with this #19642