[behavioural_qc] Add missing db translations

[HachemJ]

Brief summary of changes

This PR adds the missing database translations for table entries in the Behavioural QC module.

I also removed a row with feedback_level = instrument that had no associated instrument entry. It appears to be invalid data and was causing a multilingual bug, so it seemed reasonable to remove it, assuming no tests depend on it.

Testing instructions (if applicable)

1. git checkout HachemJ/AddMissingDbTranslationsBehaviouralQc
2. delete project/locale
3. copy raisinbread/locale into project/locale
4. run make dev (make sure it ran the msgfmt --use-fuzzy -o table.mo table.po commands)
5. Go to 'Clinical' -> 'Behavioural Quality Control'
6. Switch the language to French

For each of the three tabs (Incomplete Forms, Data Conflicts and Behavioural Feedback):
7. Verify that the table entries are translated in each of the three tabs

Link(s) to related issue(s)

• Resolves [behavioural_qc] Missing translations in French (mostly database) #10955 (Reference the issue this fixes, if any.)
• Resolves [behavioural_qc] Visit column not translated #11045 (Reference the issue this fixes, if any.)

[driusan]

@HachemJ Can you revert the test_names part of this? The instrument name comes from NDB_BVL_Instrument::getFullName(), not the database. That table is not populated for all instruments.

We might need a different solution for test names