Change the name of “Terminology” in glossary

### Describe the problem

These two words “term” and “terminology” have similar meaning in English. Sometimes even “terminology” would be abbreviated to “term”.
Now that “Terminology” can be treated as a special type of glossary terms, I think the name should tell users what this feature is used for explicitly, just like [Untranslatable terms](https://docs.weblate.org/en/latest/user/glossary.html#untranslatable-terms) and [Forbidden translations](https://docs.weblate.org/en/latest/user/glossary.html#forbidden-translations).

For translators, it is hard to translate these two similar words. And If translators don't see the context or figure out how “Terminology” works before translating, they may translate these two word into same word then misleading users.
For users, “Terminology” is not a name that can be easily distinguished from “term”. Users may be confused if they don’t find that these two are different words.

TBH, I did’t know what it is used for when I first met “Terminology” in glossary since the former translation of “Terminology” in Chinese (Simplified) is inaccurate, though the translation of “Terminology” wasn’t the same as “term”. (The former translation was the Chinese translation of “proper noun”. Then I was misled.)
Even if I switched the language to English, I was still confused until I read the document. Actually, the current translation in Chinese (Simplified) is still inaccurate since I cannot find a word in Chinese that can both respect the source text and accurately tell what this feature is used for.

### Describe the solution you'd like

Change it to “Generic terms” or “Project-wide terms”(ref. #243)

### Describe alternatives you've considered

_No response_

### Screenshots

_No response_

### Additional context

_No response_