Merge branch 'screenshots' into 'master'

add screenshots to 6 apps to start testing

See merge request !2224

hooks/pre-commit

@@ -7,8 +7,8 @@ set -o pipefail
 # Redirect output to stderr.
 exec 1>&2
 
-apps="$(git diff --cached --name-only --diff-filter=ACM | sed -n 's@metadata/\(.*\).txt@\1@p')"
+apps="$(git diff --cached --name-only --diff-filter=ACM | sed -n 's,metadata/\([^/]*\)\.txt,\1,p')"
 
 if [[ -n "$apps" ]]; then
-	fdroid lint -f $apps
+    fdroid lint -f $apps
 fi