(fix) Missing last platform-stats progressbar

[AlmostEasyGoing]

Description
Currently, the progressbar for the % disk usage of the last platform does not show up in SYSTEM > Server stats.
Therefore this PR removes the display: none; for the last progressbar in the PlatformStatsSection.vue component.

Checklist

• I've tested the changes locally
• I've updated relevant comments
• I've assigned reviewers for this PR
• I've added unit tests that cover the changes

Screenshots

Previous:

Now:

[greptile-apps]

Greptile Summary

This PR restores the missing disk-usage progress bar for the final platform in Server Stats.

• Removes the CSS rule that hid the last row’s progress bar.
• Makes progress display consistent across all platform rows.

Confidence Score: 5/5

This looks safe to merge.

• No blocking issues found in the changed code.
• The final row uses the same progress component and layout as the other platform rows.

Important Files Changed

Filename	Overview
frontend/src/v2/components/Settings/PlatformsStatsSection.vue	Removes the last-row display override so every platform shows its existing disk-usage progress bar.

_{Reviews (1): Last reviewed commit: "Removed unnecessary none-display" | Re-trigger Greptile}