CHI-3945: Tweak styles for QA feedback

[stephenhand]

Description

• Remove button icons on voicemail task panel
• Tweak spacing on voicemail task panel

Checklist

• Corresponding issue has been opened
• [n/a] New tests added
• [n/a] Feature flags added
• [n/a] Strings are localized
• [n/a] Tested for chat contacts
• Tested for call contacts

Other Related Issues

None

Verification steps

AFTER YOU MERGE

1. Cut a release tag using the Github workflow. Wait for it to complete and notify in the #aselo-deploys Slack channel.
2. Comment on the ticket with the release tag version AND any additional instructions required to configure an environment to test the changes.
3. Only then move the ticket into the QA column in JIRA

You are responsible for ensuring the above steps are completed. If you move a ticket into QA without advising what version to test, the QA team will assume the latest tag has the changes. If it does not, the following confusion is on you! :-P

[Copilot]

🟡 Changes recommended

The icon removal left behind empty spacer elements in the action buttons, which can introduce unintended indentation and conflicts with the intended spacing tweaks.

Once you've addressed the issues Copilot identified, you can request another Copilot review.

Pull request overview

This PR adjusts the Voicemail task panel UI to reflect QA feedback by removing iconography from action buttons and introducing a small spacing/grouping tweak to the panel sections.

Changes:

• Removed Call/Voicemail icons (and related theme/icon imports) from the voicemail action buttons.
• Grouped voicemail panel sections into logical blocks via a new SectionGroup wrapper.
• Added SectionGroup styling in the shared Twilio task panel styles to control inter-group spacing.

File summaries

File	Description
plugin-hrm-form/src/voicemail/VoicemailTaskPanel.tsx	Removes button icons and reorganizes the voicemail task panel layout into section groups.
plugin-hrm-form/src/styles/twilioTaskPanel.tsx	Introduces SectionGroup styling used by the voicemail task panel for spacing/grouping.

Review details

• Files reviewed: 2/2 changed files
• Comments generated: 1
• Review effort level: Lite

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[Copilot]

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Pull request overview

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.