fix all compiler warnings

rust/src/webserver/webserver.rs

@@ -1,8 +1,12 @@
 //offer ota and config mode
 
-use crate::hal::battery::BatteryInteraction;
 use crate::{
-    determine_tank_state, get_version, log::LogMessage, plant_state::PlantState, BOARD_ACCESS,
+    config::PlantControllerConfig,
+    determine_tank_state, get_version,
+    hal::PLANT_COUNT,
+    log::LogMessage,
+    plant_state::{MoistureSensorState, PlantState},
+    BOARD_ACCESS,
 };
 use anyhow::bail;
 use chrono::DateTime;
@@ -19,10 +23,6 @@ use std::{
 };
 use url::Url;
 
-use crate::config::PlantControllerConfig;
-use crate::hal::{BoardInteraction, PLANT_COUNT};
-use crate::plant_state::MoistureSensorState;
-
 #[derive(Serialize, Debug)]
 struct SSIDList<'a> {
     ssids: Vec<&'a String<32>>,