Media Playing Module with Buttons

- Replace clicks and scroll actions with dedicated buttons
  for media playing module
- Add media-playing-change module to display current media
  source and left-click to change
- Add media-playing-prev/next to play previous or next
  track
- Add media-playing-play-pause to display pause button
  when media is playing and play button when media is
  paused
- Update media-playing to use Zscroll to scroll through
  artist and title text when over limit
- Add some extra helper scripts

polybar/scripts/get-media-info.sh

@@ -0,0 +1,19 @@
+#!/bin/bash
+mediaStatus=$(playerctl --player=playerctld metadata 2>&1)
+
+if [[ "$mediaStatus" == "No player could handle this command" ]]; then
+        echo "  N/A"
+else
+        artist=$(playerctl --player=playerctld metadata --format '{{ artist }}')
+        title=$(playerctl --player=playerctld metadata --format '{{ title }}')
+
+        if [[ $artist == "" ]]; then
+            artist="N/A"
+        fi
+
+        if [[ $title == "" ]]; then
+            title="N/A"
+        fi
+
+        echo "$title - $artist"
+fi