Fixed stdin reading and added update command

src/bin/noise

@@ -1,4 +1,4 @@
-#!/usr/bin/env nu
+#!/usr/bin/env -S nu --stdin
 
 let configPath = $"($env.XDG_CONFIG_HOME? | default $"($env.HOME)/.config")/irs.toml"
 let config = if ($configPath | path exists) { open $configPath }
@@ -98,6 +98,13 @@ def "main start" [--no-icon(-n) # Disables icon in notification
     notify $"Starting playback of:\n(getCurrent $host)" (not $no_icon) $host
 }
 
+# Update the mpd database
+def "main update" [--host(-H): string # mpd host
+                  ] {
+    let host = getHost $host
+    mpc update --host $host
+}
+
 # Toggles playback of the current que
 def "main toggle" [--no-icon(-n) # Disables icon in notification
                    --host(-H): string # mpd host
@@ -121,9 +128,10 @@ def "main insert" [ --host(-H): string # mpd host
                   , ...uri: string # URI to insert
                   ] {
     let host = getHost $host
+    let input = $in | to text
     match ($uri | is-empty) {
-        true => { $in | mpc insert --host $host }
-        false => {mpc insert --host $host $uri }
+        true => { $input | mpc insert --host $host }
+        false => { ($uri | to text) | mpc insert --host $host }
     }
 }
 
@@ -132,9 +140,10 @@ def "main add" [ --host(-H): string # mpd host
                , ...uri: string # URI to add
                ] {
     let host = getHost $host
+    let input = $in | to text
     match ($uri | is-empty) {
-        true => { $in | mpc add --host $host }
-        false => { mpc add --host $host $uri }
+        true => { $input | mpc add --host $host }
+        false => { ($uri | to text) | mpc add --host $host }
     }
 }