added Russian translation (partial)

[StrikerRUS]

Translated potato.js and print.js.

[nabokovas]

Thank you, StrikerRus! I left a few comments about the translation. As for the rest of the translation, I have no problems.

[StrikerRUS]

@nabokovas Thanks a lot for your detailed review! Just addressed it in the latest commit.

[StrikerRUS]

@noroadsleft Can you please consider adding hacktoberfest label to this PR as well?

[yanfali]

we're removing hackoctoberfest labels because this will be done at the end of the event rather then per PR to prevent brigading and people trying to get points from just commenting

[StrikerRUS]

@yanfali Make sense! Is this PR ready to be merged?

[yanfali]

@StrikerRUS is this done? I need to test it first

[StrikerRUS]

@yanfali Yep, this PR is ready from my side.

[yanfali]

@StrikerRUS can you rebase onto current master please? You'll also need to do step 5 of this guide https://github.com/qmk/qmk_configurator/tree/master/src/i18n to add Russian to the list of languages that can be forced on.

[StrikerRUS]

@yanfali Seems that step is a new one, because I can't remember I saw it when created my PR. I've just rebased and done that step. Please check.

[yanfali]

@StrikerRUS yes, it's brand new. We changed it to make it easier to override language pref if you are a French man for example who actually likes English. @zekth

[yanfali]

LGTM (Looks Good To Me)

[yanfali]

@StrikerRUS @nabokovas thank you both for your contribution