ROU-12945: Fixed wrong design time presentations

[os-davidlourenco]

This PR is for fixing incorrect design-time (Service Studio preview) presentation of Chat Message status and Dropdown arrow positioning on ODC.

What was happening

• In Service Studio preview, Chat Message status layout broke when an If widget container was present inside .chat-message-status, causing misaligned status icons.
• The dropdown arrow positioning rule in the ODC icon library was targeting all dropdown containers with a select element, including Custom dropdowns, causing incorrect arrow placement for Text Only (native select) dropdowns.

What was done

• Added Service Studio preview styles so .chat-message-status uses inline-flex when it contains a .uieditor-if-widget-container, and aligned .uieditor-if-branch-widget children vertically.
• Narrowed the dropdown arrow selector to only target native select dropdowns (> select.dropdown-display) instead of any container with a select child.

Test Steps

1. Open a module in Service Studio with a Chat Message pattern that uses conditional logic (If widget) inside the message status area.
2. Verify the status icon and conditional content display inline and aligned in the design-time preview.
3. Add a Dropdown with Option Content set to Text Only (native select) inside a form and confirm the arrow icon is vertically centered.
4. Add a Dropdown with Option Content set to Custom and confirm the arrow positioning is not affected by this change.
5. Run npm run build and confirm lint passes with zero errors and warnings.

Screenshots

(prefer animated gif)

Checklist

• tested locally
• documented the code
• clean all warnings and errors of eslint
• requires changes in OutSystems (if so, provide a module with changes)
• requires new sample page in OutSystems (if so, provide a module with changes)

[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

[github-actions]

🖼️ Storybook: Chromatic UI tests result: ✅ Passed

Metric	Value
Visual changes	106
Errors	0
Storybook	Preview
Chromatic Build	View Results