removed old covex stuff

app-test/icons.html

app-test/legend_image.html

app-test/show_and_hide_elements.html

package.json

src/assets/boxplot.png

src/assets/covex_logo.png

src/assets/covex_logo_small.png

src/assets/graph_example.png

src/assets/leg1.png

src/assets/legend.png

src/assets/legend1.png

src/assets/legend11.png

src/assets/legend_main_network.png

src/assets/logo.png

src/assets/positions/network-KroganSARS-CoV2.json

src/assets/positions/network-PfefferleSARS-CoV1.json

src/assets/positions/network-VirHostNetSARS-CoV1.json

src/assets/virus.png

src/assets/virus_background.jpg

src/assets/virus_background.png