[Instant Admin] Spinner Issues

[PeterJhongLinksys]

Issues

1. Missing loading indicator

• No spinner shown when toggling automatic firmware update

2. Abnormal spinner display

• Weird spinner behavior when saving admin password

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Parent issue: #570

[AustinChangLinksys]

Resolution Update

Issues Fixed:

1. Missing Spinner on Firmware Update
2. Flattened Spinner on Password Save

Root Cause (Firmware): The async update call was not wrapped in doSomethingWithSpinner state management helper.
Root Cause (Password): AppLoader inside the dialog lacked sizing constraints, causing it to stretch (flatten) horizontally.

Resolution:

• Firmware: Wrapped the action in doSomethingWithSpinner.
• Password: Wrapped AppLoader in Center widget to enforce its intrinsic circular aspect ratio.

Status: Fixed & Verified.

[AustinChangLinksys]

Instant Admin UI issues (Firmware Update spinner, Password Save spinner) resolved.
PR: #581
Commit: 4864d2da