I can not find anywhere the following strings in the translations:

• "Missing Singularity" (To reproduce open up your wireless terminal with a Quantum card BUT WITHOUT a singularity installed)
• "Quantum Network Bridge not found. Is it in loaded chunks?" (Wireless terminal with quantum card ans singularity installed but the network is down / or no quantum bridge)

ah, those are in the api mod, specifically in ae2wtlib_api/src/main/resources/assets/ae2wtlib_api/lang/en_us.json
https://github.com/Mari023/AE2WirelessTerminalLibrary/blob/3863e26f6a675a4d779665a8862f7a6b79410ff4/ae2wtlib_api/src/main/resources/assets/ae2wtlib_api/lang/en_us.json

oh sorry, nevermind i am an idiot i did not looked under there... i will quickly add them to the PR.

Sorry again.

it's fine :)
I should probably add something to the README