Refactor code to make linter runs succeed

This commit refactors the codebase in order to make the shellcheck
workflow pass.

.forgejo/workflows/lint-bash.yml

@@ -24,12 +24,23 @@ jobs:
         run: |
           apt-get update && apt-get install -y shellcheck
 
-      - name: Run ShellCheck
+      - name: Find Shell Scripts
-        shell: bash
+        id: find-scripts
         run: |
           echo "Searching for shell scripts..."
-          find . -name '*.sh' -print0 > shell-scripts.list
+          find . -name '*.sh' > shell-scripts.list
+          echo "Found the following scripts:"
+          cat shell-scripts.list
+
+      - name: Run ShellCheck in Script Directories
+        shell: bash
+        run: |
           echo "Running ShellCheck in each script's directory..."
+          if [ ! -s shell-scripts.list ]; then
+            echo "No shell scripts found."
+            exit 0
+          fi
+
           while IFS= read -r script; do
             echo "Checking $script"
             script_dir=$(dirname "$script")

test.sh

@@ -1 +0,0 @@
-New file invalid

vaultwarden/vaultwarden-backup.sh

@@ -9,7 +9,7 @@ BACKUP_CONTAINER="duplicati"
 
 SOURCE_DIR="/mnt/data/vaultwarden"
 
-# Dump Database          
+# Dump Database
 log "Dumping vaultwarden database..."
 DB_TMP_BAK_NAME=vaultwarden-db_$(date +"%Y%m%d").sqlite3
 sqlite3 "$SOURCE_DIR/db.sqlite3 .backup '$SOURCE_DIR/$DB_TMP_BAK_NAME'" || { log "Error: Failed to dump the Nextcloud database."; exit 1; }