Updates string for not found devices.

The user can be in case where there is no audio or no video device at all, so removing the requested word from the message.

lang/main.json

@@ -258,11 +258,11 @@
         "cameraUnsupportedResolutionError": "Your camera does not support required video resolution.",
         "cameraUnknownError": "Cannot use camera for a unknown reason.",
         "cameraPermissionDeniedError": "You have not granted permission to use your camera. You can still join the conference but others won't see you. Use the camera button in the address bar to fix this.",
-        "cameraNotFoundError": "Requested camera was not found.",
+        "cameraNotFoundError": "Camera was not found.",
         "cameraConstraintFailedError": "Yor camera does not satisfy some of required constraints.",
         "micUnknownError": "Cannot use microphone for a unknown reason.",
         "micPermissionDeniedError": "You have not granted permission to use your microphone. You can still join the conference but others won't hear you. Use the camera button in the address bar to fix this.",
-        "micNotFoundError": "Requested microphone was not found.",
+        "micNotFoundError": "Microphone was not found.",
         "micConstraintFailedError": "Yor microphone does not satisfy some of required constraints.",
         "goToStore": "Go to the webstore",
         "externalInstallationTitle": "Extension required",