fix: answer range format validation and error message in Numerical input

[ihor-romaniuk]

Backport Pull Requests to frontend-lib-content-components: openedx/frontend-lib-content-components#511

Description

These fixes validate input range format; it accepts the following response forms: [1,10], [1, 10], [ 1,10 ], [ 1, 10 ], [1, 10 ] , [ 1, 10], [1.1,10], [1.1,10.1], [1.1,10.1] and display error on incorrect format like: [1.10], [1;10], [1/10], etc.

Steps to reproduce

1. Go to studio -> unit -> problem -> Numerical input
2. In answers click on Add answer button -> Add answer range
3. Fill in value [5.8), click Save (like user set dot instead of comma by mistake)

Actual result

Nothing happened, in console there's error

Note: the same when user print additional bracket

Expected result

Some validation should be for field or some error message for user should be shown
Before save:

After save:

[openedx-webhooks]

Thanks for the pull request, @ihor-romaniuk!

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[codecov]

Codecov Report

Attention: Patch coverage is 90.90909% with 1 line in your changes missing coverage. Please review.

Project coverage is 92.94%. Comparing base (73490a5) to head (23aa397).

Files with missing lines	Patch %	Lines
...ntainers/ProblemEditor/data/ReactStateOLXParser.js	66.66%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1557      +/-   ##
==========================================
- Coverage   92.94%   92.94%   -0.01%     
==========================================
  Files        1073     1073              
  Lines       21098    21107       +9     
  Branches     4479     4482       +3     
==========================================
+ Hits        19610    19618       +8     
- Misses       1422     1423       +1     
  Partials       66       66              

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