Code fixes - Widget section - Brain region

[izaletel]

The following codes need to be fixed in the widget section (errors are in bold)

`widg1 = widget.Dropdown(options=['All', 'abdominal ganglion', 'accessory lobe', 'accessory olfactory bulb', 'adult subesophageal zone', 'amygdala' 'antenna', 'antennal lobe', 'anterior olfactory nucleus', 'basal forbrain, 'basal ganglia', 'brainstem', 'Central complex', 'Central nervous system', 'cerebellum', 'cerebral ganglion', 'Cochlea', 'corpus callosum', 'cortex', 'electrosensory lobe', 'endocrine system', 'enthorinal cortex','..............

• A coma sign is missing between amygdala and antenna and thus is giving wrong results when generating .csv
• 'basal forbrain' should be 'basal forebrain'
• 'enthorinal cortex' should be 'entorhinal cortex'

[izaletel]

Can be closed if fixed.

[weeduck]

Error in app was due to threading, causing a bug that looks like the issue above. Fixed