Refactor .gitignore; add patterns for SQLite database files and improve ignored file management

Enhance app initialization; set secret key from environment variable for better security practices

Update work_log model import; change User import path for improved module structure

Refactor routes; add new inventory item creation route and enhance settings handling with JSON form state

Improve ComboBoxWidget; add handleComboAdd function for better option management and integrate with render_combobox macro

Revamp settings template; implement form state management and improve modal functionality for room creation

Add error template; create a new error handling page for better user feedback

.gitignore

@@ -1,4 +1,7 @@
 __pycache__/
 .venv/
 .env
-app.db
+*.db
+*.db-journal
+*.sqlite
+*.sqlite3