Addresses an issue where re-running an instance on replit caused an
`[ERNO 98] Address already in use` error. Now it kills whatever process
is running on the default Whoogle port (5000) before running the app.
Fixes#531
* Make replit install all requirements first
This should install all requirements from requirements.txt. It makes this a one click experience, without the user having to run `pip install -r requirements.txt` and then tap the run button. I myself had to first run that command in my repl, so I have made this change so others don't have to do the same.
repl.it also runs on linux based systems, so `&&` is the correct bash syntax.
* Running in Bash
I applied the same change I made on onBoot to the run variable, and made the language bash as the syntax `./` and `&&` belong to bash.
