Before these changes, if a module with many2one fields was loaded before this one, an error occurred saying that the TreeMany2oneClickableButton component could not be found.
To reproduce the error: Install dms and web_tree_many2one_clickable, go to Documents > Files, switch to tree view, and display the Directory field.
By forcing the assets to load right after the web module, we prevent the other module from loading first, thus avoiding this error.
[MIG] web_tree_many2one_clickable: Migration to 16.0
[MIG] web_tree_many2one_clickable: Migration to 16.0
[MIG] web_tree_many2one_clickable: Migration to 16.0
If a list contains a node which is not a field (e.g. a button), it will
not be found in the fields so we'll have an error trying to get 'type'
from undefined.