Discord has auto-translators that avoid all these problems.

Things like autoit can inject keystrokes, so in essence you can then cut and paste.

e.g. Chat snapshot, like you say, go to yandex, like you say, image -> translate, select and copy (Ctrl-C) translation, paste that back into game (with an autoit script). [Also means you can have stock translations, or broadcast one message in many languages quickly. e.g. Paste your order code in multiple languages expeditiously.]

Not the desired solution, but ...

If Win / Browser:

• Screenshots (Shift-Win-S), draw rectangle with the snipping tool
• Paste shot via Ctrl-V into Yandex OCR
• Click 'Open in Yandex Translate'. (May need to adjust languages.)

Note:

• There is a real problem with local idioms and short forms. Be generous as to how you read things.
• There are translate bugs. e.g. Google was translating French chef to English chef, instead of chief, for a long time. Causing much grief.

Reverse:

• Yandex Translate or Google Translate or something.
• In translation side, Ctrl-A (Select All), Ctrl-C (Copy)
• Using AutoIt or something, run a script to inject the text by simulating keyboard presses.
• (You can compile the script, then create a shortcut to it on your desktop. Then you can associate a keystroke, such as Ctrl-Shift-V, to that script.
  - Ctrl-A, Ctrl-C, put mouse over chat box, Ctrl-Shift-V, done.)

Even the Plarium chat app has no translator. And low uptake. Despite the ability to group people - e.g. Main Chat where enemy can't see, or Order Battle Group or something. But at least you can cut and paste - no images though.

Without translation and images, I don't expect the Plarium app will reach any critical mass. Pictures are worth 1k words, especially in this game where different languages see different things. e.g. Eternal Stronghold vs Bastion Éternel, or Plans versus Draftings.

'course Discord has all of the above built in.

(Including the ability to screenshot as above, Ctrl-V in chat to yourself in Discord [uploading the image], then right-click the Discord image and copy the link for insertion into this forum.)