Simplify upload messaging, handle -1% error

[snipe]

This doesn't really fix the issue as such, but it makes it look less terrible and confusing. I don't think the % uploaded ever actually worked properly (or files uploaded fast enough that we never saw the % increase). We can always revisit this and try to get the % actually working correctly if we want to.

Screen.Recording.2023-09-14.at.9.54.19.PM.mov

[shortcut-integration]

This pull request has been linked to Shortcut Story #23183: Import upload -1% error message.

[what-the-diff]

PR Summary

• Enhanced Language Localization
  The language localization in general.php was improved through the modification of values for notification_success, notification_warning, and notification_info. To provide better user feedback, the system now includes messages for upload_error and percent_complete.

• UI Updates in Importer View
  Updates were applied to the importer.blade.php file to refine the user interface. This involved modifying certain HTML elements such as progress-container and progress-bar, and adjusting the progress_message formatting. Furthermore, the upload_error message has been improved to include an animated icon for better error visibility.

• Improved Notification Formatting
  For better readability and clarity, the text alert layout in notifications.blade.php was modified to incorporate a colon after each error or success notification received by the user. This adds a clear separation between the notification type and the subsequent message.

[snipe]

I just pushed up a small layout change that should make the warnings appear a little nicer when an import (not upload) fails. The warning box container now has the correct padding on the sides.

Before

After

[snipe]

(Okay, I'm done for real now lol)

[uberbrady]

This looks great! Some really nice improvements - the : thing was particuarly subtle. Good choice.