Fix news styles & images rendering

[freakdaniel]

Summary

Fix news card and article rendering issues caused by Hytale's mixed content and sticker formatting

Type of Change

• Bug fix
• Enhancement / improvement
• Documentation update

Changes

• Add a Material Symbols Rounded calendar icon to news cards
• Correct the vertical alignment of news dates
• Remove unnecessary borders from article images and YouTube previews
• Preserve text when Hytale wraps inline content and media together
• Render sticker paragraphs in the original text to emoji order
• Add regression tests for mixed media and sticker paragraphs
• Refresh English and Russian news screenshots

Checklist

• Code follows the project's style and conventions
• Self-reviewed the diff before submitting
• No unintended files are included
• Documentation updated if needed