openolat#134: new picture on the intro page, cleanup of existing pictures

src/main/webapp/static/themes/uibk/_uibk_config.scss

@@ -16,6 +16,9 @@ CC BY-NC-SA 4.0 by Johann Schirmer
 intro_wb_4.jpg
 CC BY-NC-SA 4.0 by Leopold Walli und Felix Faltner
 
+intro_nightline.jpg
+Background Image: Pixabay License: https://pixabay.com/de/photos/stadt-innsbruck-nachtaufnahme-3403465/ by "Tojota"
+
 */
 
 $link-color				: #1b599c;

src/main/webapp/static/themes/uibk/images/intro_0.jpg

+intro_anniversary_350_years.jpg
\ No newline at end of file

src/main/webapp/static/themes/uibk/images/intro_1.jpg

+intro_nightline.jpg
\ No newline at end of file

src/main/webapp/static/themes/uibk/images/intro_2.jpg

+intro_wb_2.jpg
\ No newline at end of file

src/main/webapp/static/themes/uibk/images/intro_3.jpg

+intro_wb_3.jpg
\ No newline at end of file

src/main/webapp/static/themes/uibk/images/intro_4.jpg

+intro_wb_4.jpg
\ No newline at end of file

src/main/webapp/static/themes/uibk/images/intro_5.jpg

+intro_wb_1.jpg
\ No newline at end of file

src/main/webapp/static/themes/uibk/images/intro_6.jpg

+intro_anniversary_350_years.jpg
\ No newline at end of file

src/main/webapp/static/themes/uibk/images/intro_7.jpg

+intro_nightline.jpg
\ No newline at end of file

src/main/webapp/static/themes/uibk/images/intro_8.jpg

+intro_wb_2.jpg
\ No newline at end of file