Refactoring/global

[uvarov-frontend]

• Complete refactoring of all files;
• Deep analysis and optimization of the entire project;
• Bug fixing and optimization of TypeScript;
• Reduced size of the final JS file;
• Reduced size of the npm package;
• Minor changes in basic styles.

The size of the final JS file:
Before: 45.2 KB (11 KB with gzip)
After: 37.3 KB (9.9 KB with gzip)