Make bg3 plugin more robust

[daescha]

• fix plugin icons not showing when buiilding with mob
• gate yaml import to only happen when the code using it is executed, to prevent users who check out this repo before a new release of mo happens from running into issues with that
• bail out of mapping function early if no mods to prevent failures because of that
• correct spacing in generated modsettings file (nodes not indented enough)
• gate diffing of modsettings for only if files exist and debug is enabled
• exec 2 of the dialog boxes created in lslib updated so they are actually shown
• add conversion of yamls in bin folder to create a consistent experience with the other folders, even though this one doesnt get mapped to documents dir
• mv files named 'log.txt' in Mods folders to logs dir when done
• remove empty folders left behind by plugin in the documents dir
• ensure all directories are created when needed
• add a small sleep after generating modsettings to ensure it gets picked up by the executable
• create dirs that should be sent to the overwrite folder from the docs folder if they dont exist in the overwrite folder when mapping starts

[daescha]

@spectrbro @TheForgotten69 as the only users I know of of the bg3 plugin, id be interested in your thoughts on these changes, if you have some time. Thanks 🤝