[BUG]: In OverView, when several nodes move, some performance issues occur (lag in node movement).

[mohsenkondori]

Describe the bug
In OverView, when several nodes move, some performance issues occur (lag in node movement). The performance issue is related to nodeRectTopLeft and nodeRectBottomRight properties in the NodesOverview class (has binding to position).

#174

To Reproduce
Steps to reproduce the behavior:

1. Select several nodes (more than 30)
2. Mode the selected nods
3. See the position change lags

Expected behavior
The node's movements must be smooth.

Screenshots
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Software Versions
Application version: (add either official git release version or git SHA)
Firmware version: (add either official git release version or git SHA)

Additional context
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