Fixed very misleading Hebrew translation

Someone took the liberty of adding the following text in Hebrew to the message about optional transaction fees: "The recommended fee is 0.01."
First, this recommendation does not appear in the English text.
Second, this is extremely misleading, since the default unit for the fee input field is BTC, and the recommendation is thus interpreted as "0.01 BTC", which is outrageous.
Naive users who would accept this suggestion would lose money, so I ask that this be merged quickly.