chore(user-interactions): remove component and user agent span attributes

[blumamir]

Removed 2 attributes from user-interactions web instrumentation:

1. component - this attribute is not speced, and the relevant data is already present in the scope name.
2. http.user_agent - this attribute is recording navigator.userAgent which is static to the application and thus should be a resource attribute. The BrowserDetector already record this value into process.runtime.version, and it is thus duplicated on the span

[blumamir]

related: open-telemetry/opentelemetry-specification#447

[codecov]

Codecov Report

Merging #1366 (03a0215) into main (61255e2) will decrease coverage by 0.02%.
The diff coverage is 44.44%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1366      +/-   ##
==========================================
- Coverage   96.10%   96.08%   -0.02%     
==========================================
  Files          14       14              
  Lines         898      895       -3     
  Branches      192      192              
==========================================
- Hits          863      860       -3     
  Misses         35       35              

Impacted Files	Coverage Δ
...ation-user-interaction/src/enums/AttributeNames.ts	100.00% <ø> (ø)
...umentation-user-interaction/src/instrumentation.ts	92.25% <44.44%> (-0.03%)	⬇️