feat: Add mobile compatibility utilities and enhance UI templates

- Introduced mobile compatibility utilities in mobile_compatibility.js for better handling of file uploads and image previews on mobile devices.
- Created base.html as a foundational template with responsive design and mobile compatibility features.
- Developed login.html for user authentication with a password toggle feature.
- Added main.html for displaying license keys and HWIDs with options to generate new keys and upload backups.
- Implemented a test script (test.sh) for validating license information via API.
- Created verify.py for license key validation and management, including functions for loading, checking, and registering keys.
- Added version.txt to track the current version of the application.

Inventarsystem-Lizenz-Verwaltung/licenses.json

@@ -0,0 +1,17 @@
+[
+  {
+    "user_id": "0001",
+    "license_key": "npEDI1JVhyisQ2dg-fWTTAn5H1hg3eS80Zc-4IptWIU=",
+    "hwid_uuid": "0c27aefd7107396933c7363efa38fb6c297aa3db119c1597952c05d947f4f27c"
+  },
+  {
+    "user_id": "0002",
+    "license_key": "qclcig8LitaXJGC4zqcZ3xFULlUinzGAOBYB07YGrTA=",
+    "hwid_uuid": "0c27aefd7107396933c7363efa38fb6c297aa3db119c1597952c05d947f4f37c"
+  },
+  {
+    "user_id": "0003",
+    "license_key": "H02JSHkh9qtnzU8D5yBVcyej98AU-R6lVhwyYfHA1uM",
+    "hwid_uuid": ""
+  }
+]