[ACS-5184] Show progress spinner on file navigation

[nikita-web-ua]

Please check if the PR fulfills these requirements

• The commit message follows our guidelines
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

What kind of change does this PR introduce? (check one with "x")

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• Documentation
• Other... Please describe:

What is the current behaviour? (You can also link to an open issue here)

https://hyland.atlassian.net/browse/ACS-5184

What is the new behaviour?

Navigating to the next file will trigger spinner loading until the next file's data is ready to be rendered.

Does this PR introduce a breaking change? (check one with "x")

• Yes
• No

If this PR contains a breaking change, please describe the impact and migration path for existing applications: ...

Other information:

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[AleksanderSklorz]

Two things:

1. If you have pdf then you can see spinner and after that loading bar. Can we show only one thing (like for example only spinner) because it seems a bit strange because spinner means that something is loading so when spinner hides then we expect that everything is loaded but then again loading bar is displayed which also suggest that something is loading?
2. Sometimes when I'm switching to image then when spinner hides I can see empty space for a moment which looks like something is not fully loaded yet. Can we somehow resolve that?

Screen.Recording.2025-01-28.at.11.59.05.mov