fix: add missing aria-labels to icon-only controls in ABHA components

[Aarti-panchal01]

📋 Description

Fixes accessibility violations in ABHA components of Common-UI.
Adds missing aria-labels to all icon-only interactive controls.

Fixes: PSMRI/AMRIT#161

✅ Type of Change

• 🐞 Bug fix
• 🎨 UI/UX

ℹ️ Additional Information

Changes:

• 7 close dialog buttons: added aria-label="Close dialog"
• 2 password toggles: added aria-label="Toggle password visibility" + converted from plain mat-icon to proper mat-icon-button
• Total: 9 accessibility violations fixed across 8 files
• Improves WCAG compliance and screen reader support

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 13e9b739-b60f-4b62-9a93-e3b3551e0717

📥 Commits

Reviewing files that changed from the base of the PR and between 5b6fe40 and 4744668.

📒 Files selected for processing (8)

• src/registrar/abha-components/abha-consent-form/abha-consent-form.component.html
• src/registrar/abha-components/abha-enter-mobile-otp-component/abha-enter-mobile-otp-component.component.html
• src/registrar/abha-components/abha-mobile-component/abha-mobile-component.component.html
• src/registrar/abha-components/biometric-authentication/biometric-authentication.component.html
• src/registrar/abha-components/display-abha-card/display-abha-card.component.html
• src/registrar/abha-components/download-search-abha/download-search-abha.component.html
• src/registrar/abha-components/generate-abha-component/generate-abha-component.component.html
• src/registrar/abha-components/health-id-display-modal/health-id-display-modal.component.html

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• Create PR with unit tests

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[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

[Aarti-panchal01]

Hi @drtechie and @charantejguniganti

Fixed all 9 accessibility violations identified in #161.

What was fixed:

• 7 ABHA close dialog buttons: added aria-label="Close dialog"
• 2 password visibility toggles: added aria-label="Toggle password visibility" + converted from plain mat-icon to semantic mat-icon-button

Why this matters for AMRIT:
ABHA integration is used by frontline health workers including ASHAs and ANMs, many of whom use assistive technologies. Screen reader support on these dialogs was completely broken — a user relying on a screen reader couldn't even close the ABHA dialog or toggle password visibility.

WCAG criteria addressed:

• 1.1.1 Non-text Content (Level A)
• 2.1.1 Keyboard accessibility (Level A)
• 4.1.2 Name, Role, Value (Level A)

Happy to extend this to non-ABHA components (if needed)!