[IMP] product_pricelist_rules: counter in pricelist item shortcut

[agaldona]

No description provided.

[alfredoavanzosc]

:+1

[codecov-io]

Codecov Report

Merging #1388 into 8.0 will decrease coverage by 0.03%.
The diff coverage is 38.46%.

@@            Coverage Diff             @@
##              8.0    #1388      +/-   ##
==========================================
- Coverage   61.73%   61.69%   -0.04%     
==========================================
  Files         284      284              
  Lines        8561     8573      +12     
==========================================
+ Hits         5285     5289       +4     
- Misses       3276     3284       +8

Impacted Files	Coverage Δ
...roduct_pricelist_rules/models/product_pricelist.py	63.63% <ø> (ø)	⬆️
product_pricelist_rules/models/product.py	37.93% <38.46%> (-3.25%)	⬇️

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[agaldona]

@odoomrp/developers review as soon as possible please