Add navigation to repetition page

Cargo.toml

@@ -10,3 +10,5 @@ dirs = "6.0.0"
 serde = { version = "1.0.144", features = ["derive"] }
 serde_json = "1.0.149"
 rhai = "1.24.0"
+chrono = "0.4.44"
+rusqlite = { version = "0.39.0", features = ["chrono"] }