TODO: Better Export to Image functionality and UX

[oxy86]

Right now, when the user needs to export the active network to an image, the only way is to click one of the three options in Network --> Export submenu (PNG, BMP, and PDF). The a dialog appears where the user can only enter a name for the file, without any other options. After that the network is exported.

SocNetV should include a more flexible and consolidated functionality for exporting nets to images. For instance, there should be only one option "Export to Image". Clicking that a dialog should appear where the user should be able to select/input:
Path and filename
Notes/Comments to appear on a specific position of the image

[oxy86]

Fixed in v2.5