Nmc/5782 web files black and white overlapping borders shown after folder renaming

[psawalka]

This PR addresses the issue where borders appeared around the folder name text and icons after renaming and hovering:

• Removed default box-shadow and outline styles from .files-list__row-name-link and its child elements.
• Ensured folder name text (.files-list__row-name-text) render focus outlines without touching text.
• Maintained proper alignment and spacing with flex layout, padding, and min-height adjustments.