[Enhancement]: Implement connection check

[daverolo]

Describe the enhancement

Implement a check that shows a popup message and allows a re-login on button click if the connection to the node is bad.

Reason

We got several reports of users that just see freezing cards at some point, usually due to a bad internet connection:

Dependencies

No response

Additional Context

@MaxTheGeeek and @NeoPlays mentioned some events of Electron that can be used to monitor the connection and the current state of the application window.
If the connection reaches a certain point that is defined as "bad" a trigger should be executed to pass this information to the UI.

Acknowledgment

• I have reviewed the existing enhancements and confirm that this suggestion is unique.

[daGscheid]

We have more room with the upcoming changes for #1638

(early version)

And we will use this to fullfill this task.

[daGscheid]

Completed with: #1809