Add helper for stable button width during loading state transitions

[aniokedianne]

Summary
Buttons that switch between a label and a loading spinner often change width during the transition, causing surrounding layout to shift. A helper that reserves the button width during loading prevents this jump.

Scope

• identify buttons in the UI that visibly shift width when entering a loading state
• add a helper or style pattern that preserves the button width during loading
• apply the helper to at least one confirmed instance

Acceptance Criteria

• the affected button does not change width when transitioning to loading state
• the label and spinner are each displayed at the correct size within the stable width
• the helper is easy to apply to other buttons that need the same behavior

Contributor coordination: if you pick this up, reach out in Telegram for updates or clarification: https://t.me/accesslayerorg

[dotmantissa]

@dotmantissa has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

Hi 👋 am a full-stack developer
I will love to work on this issue please assign.

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[chiscookeke11]

@chiscookeke11 has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

Hello Sir, Please I would love to work on this issues

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