Rework share dialog

Reduce the amount of mouse-clicks and key presses required to share notes:

• When sharing notes, pressing the [Macro] button now presents the list of macro file commands in the listbox.
• When sharing notes, the plugin now searches for any running EQII game(s) and activates the selected game window when the [Macro] or [Copy] button is pressed, so the next key press goes to the game instead of the plugin.
• When sharing notes, if a running EQII game is found, the initial view is the list of do_file_commands to share the note via macro(s).