Simplify templates to submit form data without transforming it to json first

[northwestwitch]

This PR adds | fixes:

• Since report endpoints are accepting form data, templates can submit forms without having to do the json transformation step now.

How to test:

• Deploy on stage
• Gp to demo report page, modify the query in "customize" and submit the form
• Go to demo overview page and click on a different completeness tab

Expected outcome:

• Report and overview pages should work

Review:

• Code approved by HS
• Tests executed by CR

This version is a:

• MAJOR - when you make incompatible API changes
• MINOR - when you add functionality in a backwards compatible manner
• PATCH - when you make backwards compatible bug fixes or documentation/instructions

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.60%. Comparing base (2cc3fa4) to head (7ed34fb).
Report is 48 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #283      +/-   ##
==========================================
+ Coverage   94.54%   94.60%   +0.05%     
==========================================
  Files          35       35              
  Lines        1943     1982      +39     
==========================================
+ Hits         1837     1875      +38     
- Misses        106      107       +1     

Flag	Coverage Δ
unittests	94.60% <ø> (+0.05%)	⬆️

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[sonarcloud]

Quality Gate passed

Issues
1 New issue
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

See analysis details on SonarCloud

[northwestwitch]

Test of report page

• From demo report:

• Change completeness cutoff and update values --> works! ✅

[northwestwitch]

Test of genes coverage overview page

• From demo overview page:

• Change completeness tab --> works! ✅

[northwestwitch]

Providing a list of genes as Ensembl IDs and HGNC symbols doesn't work yet, so it's safer to fix this label

[henrikstranneheim]

Nice, 👍