Display translated text and Working hover effect for locale: "de" and "de-DE"(Resolve bug: Issue #63)

[avicndugu]

This is a bug fix

Summary

This PR is resolving the issues related translation and hover effects when locale entry in _config.yml is set to "de" or "de-DE". I the bug can be separated into 3 parts.

• [x] 1. Show translated German Navbar whether you set the locale to "de" or "de-DE" on config.yml.
• [x] 2. Show translated content whether you set the locale to "de" or "de-DE" on config.yml.
• [x] 3. The portfolio hover effect stops working and the plus icon gets misplaced.

The hover effect solution works for Spanish language as well.

Context

This is related to GitHub issue: Switching default locale to German issue #63