NetworkCells: Fix network cells height attribution
This merge request brings a fix to the network cells' height attribution:
- The network cells' height are not hardcoded values anymore.
- The labels sizes are now considered while computing the cells' height.
This merge request also introduces a delegation to update the table view.
The remote network table view is now updated when the WiFi cell's switch is toggled, allowing the table view to display properly the details of the WiFi cell, which content is updated after this interaction.
The following screen shots show an overview of the cells with different font sizes selected in the accessibility settings.
Screenshots on iPhone
Screenshots on iPad
Closes #1395 (closed)