[RUMF-620]: Send service as tag and attribute

[glorieux]

Motivation

Using service as attribute only requires some UI and Facets changes.

Changes

Dual ship service as tag and attribute while we make the required changes.

Testing

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I have gone over the contributing documentation.

[codecov-commenter]

Codecov Report

Merging #501 into master will decrease coverage by 0.31%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #501      +/-   ##
==========================================
- Coverage   87.98%   87.66%   -0.32%     
==========================================
  Files          35       35              
  Lines        2155     2156       +1     
  Branches      433      434       +1     
==========================================
- Hits         1896     1890       -6     
- Misses        259      266       +7     

Impacted Files	Coverage Δ
packages/core/src/configuration.ts	83.72% <100.00%> (+0.38%)	⬆️
packages/rum/src/rum.ts	86.82% <0.00%> (-4.66%)	⬇️
packages/rum/src/performanceCollection.ts	61.66% <0.00%> (-1.67%)	⬇️

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