Summary: Vposter adds new mobile and support features

Why It Matters: These changes make the Vposter service easier to use on phones and get help.

What Changed:

• The "Мобильная версия" (Mobile version) section was changed from a simple link to a full section with details.
• The new "Мобильная версия" section now says pages are made for mobile, work like the full version, load fast with caching, and support PWA.
• A new "Поддержка сайта" (Site support) section was added.
• The new "Поддержка сайта" section says users can ask unlimited questions, messages go through VK widget, answers come fast, and they will answer any service question.
• The number of views for a blog post changed from 1.7K to 1.8K.
• The number of views for another blog post changed from 990 to 1K.
• The number of views for a third blog post changed from 666 to 672.