[FE]: When attempting to save a view, the application currently allows saving even if the label field is left empty or contains only whitespace.

[Aarif5435]

Bug description

When attempting to save a view, the application currently allows saving even if the label field is left empty or contains only whitespace. This leads to confusion and inconsistent view names in the UI.

Expected behavior

The application should prevent saving a view with an empty label or a label containing only whitespace. An error message should prompt the user to enter a valid label name before proceeding.

How to reproduce

1. Open the "Save this view" dialog.
2. Leave the "Label" field empty or enter only spaces.
3. Click on the "Save this view" button.
4. Observe that the view is saved despite the empty or whitespace-only label.

Screenshort

view-save.mp4

Version information

• Signoz version: 0.56
• Browser version: Version 130.0.6723.119
• Your OS and version: macOS
• Your CPU Architecture: ARM

Additional context

This issue impacts the user experience as it allows views to be saved without meaningful names, making it difficult to identify saved views later. A validation check should be added to ensure that the label field contains non-whitespace characters before allowing the view to be saved.

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[Aarif5435]

I have fixed this issue, please have look to the PR.
PR:- #6446