fix: add validation to problem number fields

[ihor-romaniuk]

Description:

This pull request contains fixes to problem number fields Scoring point (weight), Scoring attempts, Show answer, Time between attempts and Tolerance.

According to old (legacy) studio functionality were changed:

• add minimum value limits to all problem number fields
• add ability to enter float number value to Scoring points (weight) and Tolerance fields

Screenshots:

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Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 90.50%. Comparing base (c0bc54a) to head (44dc0b7). Report is 79 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #425 +/- ## ======================================= Coverage 90.49% 90.50% ======================================= Files 228 228 Lines 4115 4118 +3 Branches 822 823 +1 ======================================= + Hits 3724 3727 +3 Misses 370 370 Partials 21 21 ```

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[mphilbrick211]

HI @openedx/2u-tnl! Would someone be able to please review / merge this for us?

[mphilbrick211]

Hi @openedx/2u-tnl! Would someone be able to take a look at this? Thanks!

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