[BUG] Sequence extraction does not work if I have already extracted and edit manually

[Jumitti]

Describe the bug
TFinder allows to extract sequences in order to analyze them but also to use these own sequences.

However, if you first extract sequences and manually modify the sequences (or put a personal sequence) you can no longer extract a sequence. Extraction messages are there but to no avail

To Reproduce
Steps to reproduce the behavior:

1. Extract sequences
2. Modify or replace sequence manually
3. Extract sequence again
4. Messages of extraction appear but sequence not displays un corresponding section

**Temporary solution **
This bug is caused by the way Streamlit Cloud runs the script. With each modification it restarts the script from top to bottom. This bug is known but I haven't found a solution yet.

However, if you change a parameter, the button works again and extracts perfectly.