Previously, only columns with the class o_column_sortable had the custom
SCSS applied to them. As a result, columns like HTML were not sortable
and didn't benefit from the custom SCSS.
This commit made changes to the SCSS selector to include all table's
columns in the list view. However, the record selector (the first
checkbox column) and the column optional (the last column) that have the
class o_list_controller were excluded to avoid unexpected behavior.
Fix an error when retrieving column sizes for lists containing one or more list_button columns.
This error occurs when a list_button column is placed between other columns in the list. This type of column is excluded from the querySelector string used to retrieve column headers, which can cause the index to shift and the column size to change when the list is displayed.