Blog page. Fix/optimise OG tags #107

Currently if I try to share the page link in messenger or on social media it looks ugly, let's fix it and make decent.

1. Change the picture, it was added in a hurry back then. Let's use my photo from the S-Bahn, where I'm in jeans watching out the window.
2. Think of changing the title to something less pathos and more natural.

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