ROU-13031: Use default line-height on tags

[os-davidlourenco]

This PR is for keeping Tag at its min-height instead of growing from inherited body line-height.

What was happening

• .tag used line-height: var(--osui-font-line-height-full), and the default size rendered taller than the 20px min-height.

What was done

• Set line-height: normal on .tag so the line box follows the tag font-size instead of the body leading.
• Height is then controlled by min-height (20px default, 16px small, 28px medium).

Test Steps

1. Open sample app
2. Check the default size (no size class): the tag should be 20px tall, not ~28px.
3. Switch Size to small: the tag should be 16px tall.
4. Switch Size to medium: the tag should be 28px tall.
5. Confirm the label is still readable and vertically centered for each size, including IsLight and shape variants.

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	1
Errors	0
Storybook	Preview
Chromatic Build	View Results