Use dpkg when checking for installed packages

* Removes apt warnings

templates/desktop-apps/free-download-manager.tmpl

@@ -1,4 +1,4 @@
-if ! apt list --installed | grep -q '^freedownloadmanager/'; then
+if ! dpkg -l | grep -q '^ii\s*freedownloadmanager'; then
   curl -o /tmp/fdm.deb 'https://files2.freedownloadmanager.org/6/latest/freedownloadmanager.deb'
   sudo apt install -y /tmp/fdm.deb
   rm /tmp/fdm.deb

templates/desktop-apps/google-chrome.tmpl

@@ -1,4 +1,4 @@
-if ! apt list --installed | grep -q '^google-chrome-stable/'; then
+if ! dpkg -l | grep -q '^ii\s*google-chrome-stable'; then
   curl -o /tmp/chrome.deb https://dl.google.com/linux/direct/google-chrome-stable_current_amd64.deb
   sudo apt install -y /tmp/chrome.deb
   rm /tmp/chrome.deb

templates/desktop-apps/localsend.tmpl

@@ -1,4 +1,4 @@
-if ! apt list --installed | grep -q '^localsend/'; then
+if ! dpkg -l | grep -q '^ii\s*localsend'; then
   ~/.local/bin/eget localsend/localsend --to /tmp/localsend.deb -a linux-x86-64 -a .deb
   sudo apt install -y /tmp/localsend.deb
   rm /tmp/localsend.deb

templates/desktop-apps/megasync.tmpl

@@ -1,12 +1,12 @@
 . /etc/os-release
 
-if ! apt list --installed | grep -q '^megasync/'; then
+if ! dpkg -l | grep -q '^ii\s*megasync'; then
   curl -o /tmp/mega.deb "https://mega.nz/linux/repo/xUbuntu_${VERSION_ID}/amd64/megasync-xUbuntu_${VERSION_ID}_amd64.deb"
   sudo apt install -y /tmp/mega.deb
   rm /tmp/mega.deb
 fi
 
-if ! apt list --installed | grep -q '^nautilus-megasync/'; then
+if ! dpkg -l | grep -q '^ii\s*nautilus-megasync'; then
   curl -o /tmp/nautilus-mega.deb "https://mega.nz/linux/repo/xUbuntu_${VERSION_ID}/amd64/nautilus-megasync-xUbuntu_${VERSION_ID}_amd64.deb"
   sudo apt install -y /tmp/nautilus-mega.deb
   rm /tmp/nautilus-mega.deb

templates/desktop-apps/mpv.tmpl

@@ -1,4 +1,4 @@
-if ! apt list --installed | grep -q '^mpv/'; then
+if ! dpkg -l | grep -q '^ii\s*mpv'; then
   sudo apt install -y mpv
   curl -fsSL https://raw.githubusercontent.com/tomasklaen/uosc/HEAD/installers/unix.sh | bash
   curl -L -o ~/.config/mpv/scripts/thumbfast.lua https://raw.githubusercontent.com/po5/thumbfast/master/thumbfast.lua

templates/desktop-apps/steam.tmpl

@@ -1,8 +1,10 @@
-if ! apt list --installed | grep -q '^steam-libs/'; then
+if ! dpkg -l | grep -q '^ii\s*steam-launcher'; then
   sudo dpkg --add-architecture i386
   sudo apt update
+
+  sudo apt-get install --no-remove -oAPT::Get::AutomaticRemove=false libc6:amd64 libc6:i386 libegl1:amd64 libegl1:i386 libgbm1:amd64 libgbm1:i386 libgl1-mesa-dri:amd64 libgl1-mesa-dri:i386 libgl1:amd64 libgl1:i386
+
   curl -L -o /tmp/steam.deb https://cdn.akamai.steamstatic.com/client/installer/steam.deb
   sudo apt install -y /tmp/steam.deb
-  sudo apt-get install --no-remove -oAPT::Get::AutomaticRemove=false libc6:amd64 libc6:i386 libegl1:amd64 libegl1:i386 libgbm1:amd64 libgbm1:i386 libgl1-mesa-dri:amd64 libgl1-mesa-dri:i386 libgl1:amd64 libgl1:i386 steam-libs-amd64:amd64
   rm /tmp/steam.deb
 fi

templates/desktop-apps/ulauncher.tmpl

@@ -4,7 +4,7 @@ if [[ ! -d ~/.config/ulauncher/user-themes/libadwaita-dark ]]; then
     ~/.config/ulauncher/user-themes/libadwaita-dark
 fi
 
-if ! apt list --installed | grep -q '^ulauncher/'; then
+if ! dpkg -l | grep -q '^ii\s*ulauncher'; then
   sudo add-apt-repository universe -y
   sudo add-apt-repository ppa:agornostal/ulauncher -y
   sudo apt update

templates/desktop-apps/vscode.tmpl

@@ -1,6 +1,5 @@
-if ! apt list --installed | grep -q '^code/'; then
+if ! dpkg -l | grep -q '^ii\s*code'; then
   curl -L -o /tmp/code.deb 'https://code.visualstudio.com/sha/download?build=stable&os=linux-deb-x64'
   sudo apt install -y /tmp/code.deb
   rm /tmp/code.deb
 fi
-

templates/desktop-apps/youtube-music.tmpl

@@ -1,4 +1,4 @@
-if ! apt list --installed | grep -q '^youtube-music/'; then
+if ! dpkg -l | grep -q 'ii\s*youtube-music/'; then
   ~/.local/bin/eget th-ch/youtube-music --to /tmp/youtube-music.deb -a amd64 -a .deb
   sudo apt install -y /tmp/youtube-music.deb
   rm /tmp/youtube-music.deb