Character in wrong line

On the overview page of our ConfTool Pro installation we modified a text, but unfortunately the trailing colon moved to the line below (see image 1), and we don’t know how to fix it.

What happened here is that, by using the HTML editor, paragraph elements ("<p>" and "</p>") were added before and after each line automatically.
 
You can correct this occurrence. Please go to:

Overview => Settings => Wording and Phrases

Search again for the text you had modified (in this example "S_INDEX_MESSAGE").
Click on "Edit phrase" to amend the text accordingly, but without using the HTML editor (see image 2).
Now you can remove the paragraph elements ("<p>" and "</p>") and replace them with new line breaks where needed ("<br >").