✨ feat(blog): Enhance blog homepage

This commit introduces several improvements to the blog homepage:

- Adds a search icon and link to the Russian version of the blog
- Reduces the font size of the main title to make it more visually balanced
- Updates the blog description to focus on posts about science
- Adjusts the overall layout and spacing for a more polished appearance

These changes aim to enhance the user experience and better communicate the blog's content and focus.

public/sun.svg

@@ -0,0 +1,3 @@
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+</svg>