feat: add parallel price acquisition

[OneSpir1t]

Some improvements that were made:

• Added parallel price extraction (if there is an existing request in the pool, it is also processed, which eliminates duplication of such requests);
• Added an explicit setting for forced exclusion of prices from Flea, as well as the ability to use the original method for obtaining the price;

Explanation:

In the original implementation, when extracting prices, the main flow was blocked, which led to freezes and, as a result, a negative experience of using the mod (especially with Fika, #11). In addition, extracting prices from Flea was determined by the parameter "Enable qiuck sale to flea", which is not entirely obvious, so it was moved to a separate setting. In general, you can see for yourself how it works now.

P.S. The setting for parallel price extraction is disabled by default

[OneSpir1t]

Slightly restructured code and fixed tabulation issue.