fix: Fix typos and JS syntax errors

Closes #456 (closed)

• '_' is not defined no-undef
• 'disbale_coa_fields' is not defined no-undef
• 'list_view' is not defined no-undef
• 'listview' is not defined no-undef
• 'listview' is not defined no-undef
• Duplicate key 'fieldname' no-dupe-keys
• Duplicate key 'setup' no-dupe-keys
• Expected a 'break' statement before 'case' no-fallthrough
• Parsing error: Unexpected token {
• Parsing error: Unexpected token }
• Parsing error: Unexpected token function
• Unnecessary semicolon no-extra-semi