[src/lib/filter] Add New Method seedInList

[albertjsung]

Summary

seedInList allows users to filter for items that satisfy a list of paint seeds they are looking for. This is particularly useful for people who are looking for tier1/tier2/tier3 patterns, which each have 30+ paint seeds and can be quite tedious to search for.

E.g. seed == 301 or seed == 625 or ... or seed == 540 gets annoying pretty quick and most people do manual cmd/crtl + f searches or use a custom script.

Examples:

Implementation Details + Demo (ran dev build in chrome)

Most pattern guides for CS2 are made by korenevskiy, and those that aren't mostly follow his formatting.

I've classified the two most common ways guides list the pattern seeds:

1. seed1 seed2 ... seed10
2. seed1, seed2, ..., seed10

The implementation will allow us to directly copy and paste the numbers from the images above and pass it into our new method.

Example One (most common case, seeds separated by seeds):

Example Two (with commas this time):

Future Work

Once approved, will need to add this method to filter_help.ts so users can see and understand how to use this method properly. Can probably find a better name for this method as well so it's more intuitive to users.

Also, this feature would be extremely useful for the csfloat market search filters as well. But I'm not sure how they go about receiving feature ideas from the public.

[albertjsung]

Could also consider using a singular set of seeds and checking if each market listing's paint seed has membership in the set. This would make lookups faster, but implementation is a bit more complicated and didn't want to get ahead of myself.

For what its worth this feature could already exist and I didn't look hard enough.

[GODrums]

First of all, thank you for your contribution.

I believe you might have missed the in operator, which covers this exact use case.
So for your example, you could write:

seed in (301,625,540)