Update exposure default

[Egocentrix]

In his fork @aurelienpierre has changed the defaults for the exposure and filmic modules: https://github.com/aurelienpierre/R-Darktable/commit/60bbf83ac5de291344923861aaec464f29879209

Should they be changed in dt as well?

[MStraeten]

be patient, it‘ll find it’s way into master too - but since 4.0 is about to be finalised there’s no hurry for further changes yet…

[github-actions[bot]]

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[dterrahe]

This has now landed in master too https://github.com/darktable-org/darktable/commit/9a82b2f1584626684142e3b441a631ded2a9f467