Remove sample name suffixes and peak picking corner case

[xtrojak]

This PR solves two issues since both need to update test files and this way it can be done only once.
The test files updated here (required to be merged first).

Fixed peak picking corner case when an EIC has between 2 and 10 features.
Close #204.

Removed _intensity and _rt suffixes from aligned tables.
Close #211.

[hechth]

@xtrojak please update the changelog :)

[codecov]

Codecov Report

Patch coverage: 100.00% and project coverage change: -0.07 ⚠️

Comparison is base (d6be955) 65.84% compared to head (5ee4f63) 65.78%.

❗ Current head 5ee4f63 differs from pull request most recent head 8b9231a. Consider uploading reports for the commit 8b9231a to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #212      +/-   ##
==========================================
- Coverage   65.84%   65.78%   -0.07%     
==========================================
  Files          23       23              
  Lines        2685     2680       -5     
==========================================
- Hits         1768     1763       -5     
  Misses        917      917              

Impacted Files	Coverage Δ
R/prof.to.features.R	87.05% <ø> (-0.15%)	⬇️
R/feature.align.R	96.38% <100.00%> (ø)
R/recover.weaker.R	98.32% <100.00%> (ø)

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