This commit changes web_editor's powerbox search feature to also look
for matches in a command's `description`, in addition to its `groupName`
and `title`.
For example, typing /track will suggest the Checklist command among the
suggestions as its description is "Track tasks with a checklist".
Note that only exact matches are considered for the description, while
fuzzy matches (with missing chars) work for other attributes.
Also fixes a typo in a local variable name because it was hazardous to
some people's eyesight.
task-3188758
closesodoo/odoo#118486
X-original-commit: 7fa6d48f1b69e4d4806db29310223d326b0e0ed5
Signed-off-by: David Monjoie (dmo) <dmo@odoo.com>