bootstrap tooltip broke tipsy for app levels

[LukasReschke]

Regression caused by #17075

[LukasReschke]

Basically everything using fallback is broken, see

core/settings/js/apps.js

Lines 121 to 123 in 1e48eb8

	$('.app-level .official').tipsy({fallback: t('settings', 'Official apps are developed by and within the ownCloud community. They offer functionality central to ownCloud and are ready for production use.')});
	$('.app-level .approved').tipsy({fallback: t('settings', 'Approved apps are developed by trusted developers and have passed a cursory security check. They are actively maintained in an open code repository and their maintainers deem them to be stable for casual to normal use.')});
	$('.app-level .experimental').tipsy({fallback: t('settings', 'This app is not checked for security issues and is new or known to be unstable. Install at your own risk.')});

for the affected code.

[LukasReschke]

Proposed patch is at #17871

[davitol]

👍 Looks good