Fix for bing safesearch

Closes #73

See merge request e/cloud/my-spot!83

Fix google crash

See merge request e/cloud/my-spot!84

Removed safesearch debbug log

Closes e/backlog#4174

See merge request e/cloud/my-spot!82

Fix bing safe search

Closes #73

See merge request e/cloud/my-spot!79

Use docker pull in staging

See merge request e/cloud/my-spot!80

Updated searx link

Closes #71

See merge request e/cloud/my-spot!78

Fix npm version

See merge request e/cloud/my-spot!77

Update default list of image search engines to use safe search only

Closes e/backlog#3890

See merge request e/cloud/my-spot!75

Safesearch default value to "Moderate"

Closes e/backlog#3890

See merge request e/cloud/my-spot!74

run --build in staging d-c

See merge request e/cloud/my-spot!73

Retry when request fail; Updated default list of search engines

Closes e/backlog#3896

See merge request e/cloud/my-spot!70

onesearch engine

Closes e/backlog#3676

See merge request e/cloud/my-spot!71

fix git stash and filtron restart

Closes #69

See merge request e/cloud/my-spot!72

Fix broken layout

Closes e/backlog#1542 and #65

See merge request e/cloud/my-spot!69

Sync upstream

See merge request e/cloud/my-spot!68

Closes #3014

Pick Qwant changes