[views/dot] use an inlined svg for schema and workflow graphs
These are currently served as "temporary" pngs which are actually consummed immediately.
Which means they cannot be requested twice and any further attempt will yield an error
in the logs and some end-user surprise.
There is no known acceptable workaround for IE-8 (and previous versions). SVGWEB could
be workable but it's not trivial to integrate it properly.
Closes #3400448.
CSS Coding Standards
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(Draft, to be continued)
:Naming: camelCase
Indentation rules
~~~~~~~~~~~~~~~~~
- 2 espaces avant les propriétés
- pas d'espace avant les ":", un espace après
- 1 seul espace entre les différentes valeurs pour une même propriété
Documentation
~~~~~~~~~~~~~
Please keep rules semantically linked grouped together, with a comment about
what they are for.
Recommendation
~~~~~~~~~~~~~~
- Try to use existing classes rather than introduce new ones
- Keep things as simple as possible while in the framework
- Think about later customization by application
- Avoid introducing a new CSS file for a few lines of CSS, at least while the
framework doesn't include packing functionalities