add ability to override frequency per plant and adjust timezone, fix missing workhour for plants

rust/src_webpack/src/api.ts

@@ -69,6 +69,7 @@ interface PlantControllerConfig {
   tank: TankConfig,
   night_lamp: NightLampConfig,
   plants: PlantConfig[]
+  timezone?: string,
 }
 
 interface PlantConfig {
@@ -80,6 +81,9 @@ interface PlantConfig {
   pump_hour_end: number,
   sensor_b: boolean,
   max_consecutive_pump_count: number,
+  moisture_sensor_min_frequency?: number;
+  moisture_sensor_max_frequency?: number;
+
 }