fix(bcrypt-tool):-fix-bcrypt-error-states-and-crashes-(#1133)

[sunnydanu]

Started out with fixing CorentinTh/it-tools#1133, but I also found out it was super easy to crash the browser tab by setting the salt count to a high enough value. In light of that:

• Switched from sync to async versions of the bcrypt functions.
• Reduced max rounds to 20, as 100 is absurdly high (even 20 is absurdly high with current computing power).
• I also added a timeout if hashing/comparing takes >10 seconds. That timeout kicks in somewhere between 16 and 17 rounds on my machine.
• Updated visual progress/error states in the UI, including a progress bar and a message showing how long the function took to run.
• In-progress functions are aborted if the user changes the inputs before they run to completion.

Note: This PR incorporates contributions from upstream PR-#1152 of CorentinTh/it-tools. All original commits and authorship are retained. Some adjustments may have been made for compatibility or bug fixes.