fix(date): don't allow parameters <= 0

[Shinigami92]

While working on #1534 I found this bug and extracted it to this PR.

Before this fix, values === 0 would be treated as falsy value and fallback to 1.
We want to prevent this behavior directly and now throw an error when the user tries to use values below or equals to 0.

[codecov]

Codecov Report

Merging #1536 (6ba5fb2) into next (5a09c89) will increase coverage by 0.00%.
The diff coverage is 100.00%.

Additional details and impacted files

@@           Coverage Diff           @@
##             next    #1536   +/-   ##
=======================================
  Coverage   99.64%   99.64%           
=======================================
  Files        2214     2214           
  Lines      238725   238741   +16     
  Branches     1015     1023    +8     
=======================================
+ Hits       237869   237885   +16     
  Misses        835      835           
  Partials       21       21           

Impacted Files	Coverage Δ
src/modules/date/index.ts	99.14% <100.00%> (+0.04%)	⬆️

[ST-DDT]

As an alternative we could treat the <=0 as zero returning effectively now/refDate (minus/plus 1 second to be in the past/future).

[Shinigami92]

As an alternative we could treat the <=0 as zero returning effectively now/refDate (minus/plus 1 second to be in the past/future).

IMO this is not directly part of this issue. I would like to have this fixed to proceed with #1534.
But yeah, we can talk about this in next meeting in general, but would like to prio it down in the agenda so we have more focus on other more important things already on the agenda.