[FEATURE] Make flash message showing "DeepL Usage" configurable (or at least do not show it beneath some threshold)

[sypets]

This is not a huge problem, but is a little annoying.

Is your feature request related to a problem? Please describe.

Flash messages with usage appear when elements are translated. This is IMHO unnecessary:

• for non-admins (I do not want to bother them with this at all. The usage is monitored and there is currently no need for editors to worry about it)
• if current usage is way below limit

Also, for some reason the message sometimes appears twice. It also appears for non-admin editors. This is an inline message, so it does not disappear without reload.

Describe the solution you'd like

• make this configurable if this should be displayed at all and if only for admins and also non-admins
• and make the threshold configurable, e.g. 80%
• also, the string is not localized

Additional context

We have a paid account with DeepL with a limit. I already have functionality to see the usage, including seeing this in TYPO3 BE:

Versions

• wv_deepltranslate: latest master / main
• TYPO3: latest v11 release: 11.5.38

[pixelbrackets]

As an editor I should see relevant information only. A 4% usage limit is not relevant. With the great PR #338 this is something integrators or chief editors can keep an eye on.

Suggestion: The warning message could appear after a certain threshold, like 80% or 90%. And an error should appear when the limit is exceeded.