Add .dockerignore and update Fly.io configuration

- Created `.dockerignore` to exclude irrelevant files during Docker image build.
- Enhanced `fly.toml` with additional configuration such as VM specs and adjusted syntax.
- Fixed logo path in `index.html` and relocated the logo file for proper referencing.

.dockerignore

@@ -0,0 +1,10 @@
+# flyctl launch added from .idea\.gitignore
+# Default ignored files
+.idea\shelf
+.idea\workspace.xml
+# Editor-based HTTP Client requests
+.idea\httpRequests
+# Datasource local storage ignored files
+.idea\dataSources
+.idea\dataSources.local.xml
+fly.toml