When user tries to import a module which does not consist of an icon and then
when user tries to access that module the error occurs.
Steps to reproduce:
1. Install web_studio.
2. Import a module(without icon) from apps > import module menu.
3. Now search that module in apps and click on module info.
4. The error will occur.
Applying this commit will fix this issue.
sentry-4206999375
closesodoo/odoo#124540
X-original-commit: 4b0221800ab75d5573e7066bf8beee14488062dd
Signed-off-by: Xavier Morel (xmo) <xmo@odoo.com>