tweak: add user scripts to get this running on ubuntu 20.04

I thought these might be useful. Feel free to not accept them,
though

user-scripts/ubuntu-20.04/install-with-dependencies.sh

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+# Dependencies
+sudo apt install libwebkit2gtk-4.0-dev
+sudo apt install clang
+# sudo apt instal sudo apt install gstreamer1.0-plugins-good gstreamer1.0-libav
+
+# Adblock
+git clone https://github.com/jun7/wyebadblock
+cd wyebadblock
+make
+sudo make install 
+cd ..
+
+# Rose config
+user=$(whoami)
+mkdir -p /home/$user/.cache/rose
+cp ../../config.def.h ../../config.h # you should also probably customize this yourself.
+sed "s/fenze/$user/g" ../../config.h
+
+sudo bash ../../install.sh
+
+# Ubuntu desktop icon
+chmod +x rose.desktop
+sudo cp rose.desktop /usr/share/applications

user-scripts/ubuntu-20.04/rose-images/rose-src.txt

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+<https://www.onlygfx.com/red-rose-png-image-transparent/>

user-scripts/ubuntu-20.04/rose.desktop

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+#!/usr/bin/env xdg-open
+[Desktop Entry]
+Version=1.0
+Type=Application
+Terminal=false
+Exec= /usr/bin/rose
+Name=Rose
+Comment=Minimalistic browser
+Icon=/home/loki/Documents/core/software/fresh/C/rose-browser/rose-bud-personal/user-scripts/ubuntu-20.04/rose-images/rose-desktop-icon.png