[Backend][UI] Build a dictionary auditing tool

[galadhremmin]

There are thousands of entries in the dictionary today, and it's frankly very hard for administrators to audit the records using current tooling. With this proposal, I'm thinking administrators will gain access to a tool that will empower them to make changes to the glossary without going through the contribution process. It'll also happen at bulk, perhaps via some form of grid (similar to the Phrases).