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.
This commit adds a new `HeaderToolbar` component to the `app/page.tsx` file. The toolbar includes links to the English and Russian versions of the blog. This change improves the user experience by providing easy access to the different language versions of the blog.
