fixing margin issue that clash with columns
use col-* for all forms and nested forms
remove usage of formset-item-inline-grid
move delete button to the top right

bugfix in nested formset due to changes in templates that changed the position of the input, searching not only in children

WIP on #245

and reuse that in the links template
bioschemas for compound fixed for links and more
WIP on #245

thereby discarding Kd ratio, which isn't a
valid type activity to compute these

FIX #244

otherwise depending on the order in which the tests run, some of
them would randomly crash because livesettings had been modified
by a previous test.

and minor layout corrections
FIX #236

WIP on #236

more specifically, test name and cell line name
FIX #237

- replaced compounds can only be viewed by superusers
- and are clearly indicated as such

FIX #241

so that it uses the right verson of the model

FIX #242

to avoid error messages such as:

```
UnicodeDecodeError: 'ascii' codec can't decode byte 0xce in position 800: ordinal not in range(128)
```

remove old commented code, debug prints.

ProteinDomainComplexForm - Add PDB code and link on the page to help user find domain on PDB website

Final review step in contribution

See merge request !16

Using position:absolute was the cause of the blinking for the first render of the back of the card
Using .choices_background:hover{...background-color:white} was the cause of the impression that the flip card was turning only one out of two
Moving down box-shadow to flip-card-inner level