Managed variants, custom igv tracks, mitochondrial copy number and cancer CNV report

[4.23]

Added

• Save custom IGV track settings
• Show a flash message with clear info about non-valid genes when gene panel creation fails
• CNV report link in cancer case side navigation
• Return to comment section after editing, deleting or submitting a comment
• Managed variants
• MT vs 14 chromosome mean coverage stats if Scout is connected to Chanjo

Fixed

• missing vcf_cancer_sv and vcf_cancer_sv_research to manual.
• Split ClinVar multiple clnsig values (slash-separated) and strip them of underscore for annotations without accession number
• Timeout of All SNVs and INDELs page when no valid gene is provided in the search
• Round CADD (MIPv9)
• Missing default panel value
• Invisible other causatives lines when other causatives lack gene symbols

Changed

• Do not freeze mkdocs-material to version 4.6.1
• Remove pre-commit dependency