Refactor plant state handling and moisture interpretation

- Replaced `read_hardware_state` with `interpret_raw_values` for better abstraction and clarity.
- Enhanced error handling by introducing `NoMessage` and `NotExpectedMessage` states.
- Updated moisture sensor logic to differentiate expected and unexpected messages.
- Renamed and refactored enum fields for consistency (`raw_hz` to `hz`).
- Minor imports and formatting optimizations.

Software/MainBoard/rust/src/webserver/get_json.rs

@@ -5,7 +5,7 @@ use crate::plant_state::{MoistureSensorState, PlantState};
 use crate::tank::determine_tank_state;
 use crate::{get_version, BOARD_ACCESS};
 use alloc::format;
-use alloc::string::String;
+use alloc::string::{String, ToString};
 use alloc::vec::Vec;
 use chrono_tz::Tz;
 use core::str::FromStr;
@@ -40,25 +40,27 @@ where
     let moistures = board.board_hal.measure_moisture_hz().await?;
     let mut plant_state = Vec::new();
     for i in 0..PLANT_COUNT {
-        plant_state.push(PlantState::read_hardware_state(moistures, i, &mut board).await);
+        plant_state.push(PlantState::interpret_raw_values(moistures, i, &mut board).await);
     }
     let a = Vec::from_iter(plant_state.iter().map(|s| match &s.sensor_a {
         MoistureSensorState::MoistureValue {
-            raw_hz,
+            hz: raw_hz,
             moisture_percent,
         } => {
             format!("{moisture_percent:.2}% {raw_hz}hz",)
         }
         MoistureSensorState::SensorError(err) => format!("{err:?}"),
+        MoistureSensorState::NoMessage => "No Message".to_string(),
     }));
     let b = Vec::from_iter(plant_state.iter().map(|s| match &s.sensor_b {
         MoistureSensorState::MoistureValue {
-            raw_hz,
+            hz: raw_hz,
             moisture_percent,
         } => {
             format!("{moisture_percent:.2}% {raw_hz}hz",)
         }
         MoistureSensorState::SensorError(err) => format!("{err:?}"),
+        MoistureSensorState::NoMessage => "No Message".to_string(),
     }));
 
     let data = Moistures {