Fix denoise bug

[maxkarlsson]

Description

Fixed a plot bug and added tabset anchors that can be used to navigate throughout the ES using links.

Added

• In-report deep-link anchor IDs for plot tabsets (title_plotlist, tabset_plotlist, tabset_nested_plotlist). Anchor IDs are derived from the knitr chunk label and tab name (e.g. #abundance-per-marker-cd3, #qc-metrics-sequencing-saturation-s11).
• ES report hash navigation in custom.html: opens nested tab panes for # links, scrolls to the target, refreshes HTMLWidgets and DataTables in newly shown tabs, and restores tab/scroll state on browser back.

Fixed

• Bug in component_denoising in the isotype reduction plot, where components with zero isotype counts would cause the summary median to become NAs.

Type of change

• Bug fix
• New feature
• Breaking change

How Has This Been Tested?

Manual tests.

PR checklist:

• I have run R CMD check on the package and it passes.
• I have made changes to the documentation.
• I have added tests.
• I have documented any significant changes in CHANGELOG.md

[Copilot]

Pull request overview

This PR fixes an NA/median issue in the denoising isotype reduction component and adds in-report deep-linking for plot tabsets, including client-side hash navigation to open nested tabs and refresh widgets/tables when navigating via #... anchors.

Changes:

• Add stable, URL-safe plot anchor IDs to title_plotlist(), tabset_plotlist(), and tabset_nested_plotlist() (with corresponding tests/docs/CSS).
• Add hash-based navigation logic in inst/quarto/custom.html to activate nested tab-pane chains, scroll to targets, and refresh HTMLWidgets/DataTables/tooltips.
• Fix component_denoising isotype reduction handling by converting NA reductions to 0 (and tweak plot rounding).

Reviewed changes

Copilot reviewed 9 out of 12 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
tests/testthat/test_plot_helpers.R	Updates existing expectations to disable anchors in tests and adds new tests for slug/anchor emission.
R/read_data.R	Tightens control_markers assertion in downsample_data().
R/plot_helpers.R	Implements anchor slugging + optional anchor emission for plot lists/tabsets.
R/components.R	Fixes NA handling for isotype reduction and adjusts rounding.
man/title_plotlist.Rd	Documents new anchor_prefix argument.
man/tabset_plotlist.Rd	Documents new anchor_prefix argument.
man/tabset_nested_plotlist.Rd	Documents new anchor_prefix argument.
inst/quarto/styles.css	Adds .plot-anchor styling (zero-height anchor div).
inst/quarto/custom.html	Reworks tabset behavior and adds hash/deeplink navigation + widget/table refresh.
CHANGELOG.md	Records added deep-linking/navigation and denoise/tab activation fixes.

Files not reviewed (3)

• man/tabset_nested_plotlist.Rd: Generated file
• man/tabset_plotlist.Rd: Generated file
• man/title_plotlist.Rd: Generated file

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