Add SEO, overflow issue and img dimensions

[Christian-Mogensen]

📝 Description

Fixes:

• Broken img links of bgshoes1.jpg.
• Added SEO description / keywords for most pages.
• Fixed overflow issue on women.html.
• trending.html: 1st section of page had warped images because of conflicting values. Added some flexbox to make is fit propportionaly.

🔧 Fixes #(issue)

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📷 Provide related Screenshot/Gifs if any.

Lightbox 100 score on SEO:

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• [ ] I have performed a self-review of my own code.
• [x] I'm a contributor in Hacktoberfest'21.

[Christian-Mogensen]

Merging own dev to own master branch before new pull request