Fixed low player investor fast loop

Fixed showing market price on UI
Fixed auto buyer checking for only 1 target

Changes:

• Job scheduling rewritten by a job importance order logic. This will fix all the issues with efficiency and futbot will be able to make exactly 1 request per 2 seconds to fut in default configuration. There won't be any wasted time. This might result in faster 458 (Verification required errors).
  Read '# Job importance order values' part of .env file for details
  I'd love to have some feedback on this.

• Automatic quick sell feature is added. You can read the details in README file.

• Small logic for pricing based on Fut market. You can read the details in README file.

Fixes a Error code 461 crash in auto buyer

Auto buyer for one player has sell feature as well.
UI changes by extension is optimised a bit, web page should be faster now.
Endpoint for seeing auto buy targets added.
When you add a target for auto buying, it'll automatically start auto buy jobs.

Pricing logic centralized and cached
Good auctions rewrote, still not working properly

Resolves #31

Trade jobs changed and documented properly.
Start selling trade pile job added.
An endpoint for feedback is added.
README updated to show all existing features

This release fixes a critical bug for people who has/has more than 1 account in origin.
If you used more than 1 account or switched platforms before, you should set below value in .env file
Possible values: pc, ps, xbox

FUTBOT_FUT_PLATFORM_OVERWRITE=pc

Fixed error on Webpack server build on startup