Add simple SV filtration filter presets and adjust defaults

[holtgrewe]

Is your feature request related to a problem? Please describe.
There are a lot of presets in the SV variant calling that are hard to use. Further, the defaults are not stringent enough.

Describe the solution you'd like
Add bootstrap dropdowns to allow for the following quick presets:

• Frequency:
  • all: clear all max carriers/allele thresholds
  • relaxed:
    • DGV: 20
    • DGV Gold Standard: 10
    • dbVar: 40
    • ExAC: 20
    • 1000 Genomes: 10
    • gnomAD-SV: 10
    • in-house background: 10
  • strict:
    • DGV: 10
    • DGV Gold Standard: 5
    • dbVar: 20
    • ExAC: 10
    • 1000 Genomes: 5
    • gnomAD-SV: 5
    • in-house background: 5

Variants & Effects:

• all: select all, clear size
• relaxed: select all, min SV size: 500
• CNV only: only DEL/DUP

Quality:

• all
• relaxed
  • min PR var: 1
  • min SR var: 1
  • min SR+PR var: 4
• strict
  • min PR var: 1
  • min SR var: 1
  • min SR+PR var: 10

Also, adjust the default values to be

• Frequency max carriers/alleles: relaxed
• Variants & Effects: relaxed
• Quality: relaxed

Describe alternatives you've considered
N/A

Additional context
N/A

[holtgrewe]

Resolution Proposal
This can be implemented in the front-end alone. No adjustment to server code is necessary.

Affected Components
VarFish server

Affected Modules/Files
svs/templates/...

Required Architectural Changes
None

Required Database Changes
None

Backport Possible?
No

Resolution Sketch

• add HTML with the dropdowns
• write JavaScript to adjust the defaults