refactor: minor updates

• Minor updates to code base
• Removed Docker and nextflow files

Dockerfile

-##### BASE #####
-FROM python:3.10-slim-buster
-
-##### VARIABLES #####
-WORKDIR /Users/terminal-fragment-selector/
-
-COPY requirements.txt /Users/terminal-fragment-selector/requirements.txt
-COPY requirements_dev.txt /Users/terminal-fragment-selector/requirements_dev.txt
-
-##### INSTALL #####
-RUN apt-get update \
-&& apt-get install gcc -y \
-&& apt-get clean
-RUN pip install -r requirements.txt -r requirements_dev.txt
-
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