do not write a .bash_profile in SEPAL

[12rambau]

In https://sepal-ui.readthedocs.io/en/latest/start/contribute.html#env-for-planet-components we suggest to create a .bash_profile file to the developers of the lib. It should work on local computers but will break SEPAL instances initialization.

Looking at the .profile in my account I found:

 # ~/.profile: executed by the command interpreter for login shells.
# This file is not read by bash(1), if ~/.bash_profile or ~/.bash_login
# exists.
# see /usr/share/doc/bash/examples/startup-files for examples.
# the files are located in the bash-doc package.

# the default umask is set in /etc/profile; for setting the umask
# for ssh logins, install and configure the libpam-umask package.
#umask 022

# if running bash
if [ -n "$BASH_VERSION" ]; then
    # include .bashrc if it exists
    if [ -f "$HOME/.bashrc" ]; then
        . "$HOME/.bashrc"
    fi
fi

# set PATH so it includes user's private bin if it exists
if [ -d "$HOME/bin" ] ; then
    PATH="$HOME/bin:$PATH"
fi

# set PATH so it includes user's private bin if it exists
if [ -d "$HOME/.local/bin" ] ; then
    PATH="$HOME/.local/bin:$PATH"
fi

meaning that if .bash_profile exist then the bins are not correctly instanciated (and the coloring and other prettifying stuff)