New scripts: sxmo_{youtube,weather,rss,camera}.sh; Implement screenlock

Various minor script bugfixes

scripts/sxmo_youtube.sh

@@ -0,0 +1,23 @@
+#!/usr/bin/env sh
+pidof svkbd-sxmo || svkbd-sxmo &
+SEARCHTERMS="$(
+  echo "Search term" |
+  dmenu -p "Yt Search" -c -l 10 -fn Terminus-20
+)"
+pkill svkbd-sxmo
+
+IDIOTRESULTS="$(idiotbox-cli $SEARCHTERMS)"
+RESULT="$(
+        echo "$IDIOTRESULTS" |
+        grep -Ev '^(Channelid|Atom feed|Channel title|Published|Viewcount|Userid):' |
+        sed -E 's/^(URL|Duration):\s+/\t/g' |
+        tr -d '\n' |
+        sed 's/===/\n/g' |
+        gawk -F'\t' '{ print $3 " " $1 " " $2}' |
+        dmenu -c -l 10 -fn Terminus-20
+)"
+
+[[ "CLOSE_MENU" == "$RESULT" ]] && exit 0
+
+URL=$(echo "$RESULT" | awk -F " " '{print $NF}')
+st -e mpv --ytdl-format='[height<420]' "$URL"