Add option to filter by job posting industry

[MartimKierulff]

we can use what linkedin already has for this filter but it would be really cool to filter a little bit more. For those that want to work in a particular area. (eg. on linkedin it shows “computer software”, it could add a filter if the user wants to work in a particular area related, like retail, e-commerce, start up, fashion, grocery etc)

[rlew631]

It looks like the url parameter for this is something like &f_I=93%2C47%2C14%2C1%2C6 where %2C is the separator between the different industry codes that linkedin uses. Here is a mapping of the industry codes to the text for the industry. I'll try to figure out a good way to interact with it but start off by having users put the numerical code themselves

[joaosilvalopes]

Yeah %2C is a url encoded comma. Great! I didn't know it was possible to filter this on the url. Feel free to open a PR with this 👍