fix: remove primary icon

[palbizu]

Description

This PR removes the double icons present in the breadcrumbs and the header, particularly in ht-page-header also to show or not the icons in the crumbs following the first crumb.

Testing

Visual verification

Checklist:

• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• Any dependent changes have been merged and published in downstream modules

Documentation

Make sure that you have documented corresponding changes in this repository or hypertrace docs repo if required.

[codecov]

Codecov Report

Merging #637 (dcfc3d3) into main (cf92899) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #637   +/-   ##
=======================================
  Coverage   85.21%   85.21%           
=======================================
  Files         775      775           
  Lines       15979    15979           
  Branches     2059     2059           
=======================================
  Hits        13616    13616           
  Misses       2329     2329           
  Partials       34       34           

Impacted Files	Coverage Δ
...omponents/src/breadcrumbs/breadcrumbs.component.ts	94.11% <ø> (ø)
...omponents/src/header/page/page-header.component.ts	100.00% <ø> (ø)
...ckend-detail/backend-detail-breadcrumb.resolver.ts	100.00% <ø> (ø)

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[github-actions]

Unit Test Results

    4 files  ±0  239 suites  ±0   15m 21s ⏱️ +33s
862 tests +1  862 ✔️ +1  0 💤 ±0  0 ❌ ±0 
866 runs  +1  866 ✔️ +1  0 💤 ±0  0 ❌ ±0 

Results for commit c20063b. ± Comparison against base commit cf92899.