Core/Misc: Improvement item durability repair logic. (#26911)

* Core/Misc: Improvement item durability repair logic.

* Move item repair cost calculation logic from Player::DurabilityRepair to Item::CalculateDurabilityRepairCost
* Make item repair cost calculation more congruent with client logic (std::round)
* Do not repair items if player does not have enough money to pay for the repair of all items at once
* Withdrawing money from guild bank only once to avoid spam in the guild bank log and reduce number of transactions in the database

Closes #25937

* Fix build

* Remove unnecessary scope

* Fix visual studio warning and one more check for reliability

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