[Feature] Warn users on possible risks on installing third party unvetted plugins

[RodoMa92]

Please tick as appropriate:

• I have tested this code on a steam deck or on a PC
• My changes generate no new errors/warnings
• This is a bugfix/hotfix
• This is a new feature

Description

This PR implements proper warning messages for third party install outside our store to warn users of potential malicious code outside our ecosystem.

[JohnnyCrazy]

Nice, LGTM!

I think the TranslationHelper might be doing too much tho and grow into oblivion, maybe separate functions/helpers in the components would be better in the long term.

[EMERALD0874]

I have some non-blocking requested changes regarding the language, but the code changes look great!

[RodoMa92]

Nice, LGTM!

I think the TranslationHelper might be doing too much tho and grow into oblivion, maybe separate functions/helpers in the components would be better in the long term.

Yeah, I agree, I just need to find a decent place to place them without adding too much clutter in the structure of the project. I'll probably do this not too far down the line.