Does not find labels that have comments and/or tabs after its name

**Version:** Dev1.5
**Expected behavior:** The assembler should still be able to identify and replace the label
**Actual behavior:** The assembler skips the label

<img width="768" alt="Image" src="https://github.com/user-attachments/assets/cbaf64b1-d6ba-4758-bc91-afaab7305919" />