Bug 15362: Translatability: Fix issue on Administration 'Did you mean?'

Bug 15362: Translatability: Fix issue on Administration 'Did you mean?'

Fix sentence splitting by tags on didyoumean.tt leading to odd translations.

To test:
- Apply patch
- Go to Home > Administration > Did you mean?
- Verify that the information below the title displays properly and makes sense.
- Disable Javascript, reload page
- Verify that the warning about missing Javascript displays properly and makes sense.

Signed-off-by: Hector Castro <hector.hecaxmmx@gmail.com>
Works as descrived. Removed em tags for translation purpose

Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Brendan A Gallagher <brendan@bywatersolutions.com>
(cherry picked from commit 984f641417e20ab561b2670b5ed921dc4aa6a907)
Signed-off-by: Julian Maurice <julian.maurice@biblibre.com>