Punctuation in names forces new line

Describe the bug If the subtitles includes "names" (such as Rec.709 or similar), if the tool (correctly interprets this as "Rec.709, it seems a bit random), then the full stop forces a linefeed.

To Reproduce Enable "Split on punctuation" Any spoken word that is interpreted as a "name" with a full stop in it will generate the error.

Expected behavior "words" with embedded punctuation should be identified and treated as single words.

System (please complete the following information):

• OS: Windows 10
• Python versions installed on machine: from installer
• StoryToolkitAI Version 0.19.5

Additional context Kudos for (mostly) getting things such as Rec.709 or Rec.2020 correct!