Vacuums: use stop rather than standby in command

Stop has special handling within HA, so prefer that naming over the
common tuya "standby".

custom_components/tuya_local/devices/ihome_autovac_nova.yaml

@@ -24,7 +24,7 @@ primary_entity:
           constraint: mode
           conditions:
             - dps_val: standby
-              value: standby
+              value: stop
             - dps_val: random
               value: random
             - dps_val: smart
@@ -54,7 +54,7 @@ primary_entity:
           constraint: mode
           conditions:
             - dps_val: standby
-              value: standby
+              value: stop
             - dps_val: random
               value: random
             - dps_val: smart

custom_components/tuya_local/devices/kabum_smart500_vacuum.yaml

@@ -49,7 +49,7 @@ primary_entity:
       name: command
       mapping:
         - dps_val: standby
-          value: standby
+          value: stop
         - dps_val: smart
           value: smart
         - dps_val: spiral

custom_components/tuya_local/devices/lefant_m213_vacuum.yaml

@@ -13,7 +13,7 @@ primary_entity:
       name: command
       mapping:
         - dps_val: standby
-          value: standby
+          value: stop
         - dps_val: smart
           value: smart
         - dps_val: chargego

custom_components/tuya_local/devices/lefant_t700_vacuum.yaml

@@ -16,7 +16,7 @@ primary_entity:
       name: command
       mapping:
         - dps_val: standby
-          value: standby
+          value: stop
         - dps_val: smart
           value: smart
         - dps_val: wall_follow

custom_components/tuya_local/devices/mamnv_br151_vacuum_and_mop.yaml

@@ -13,7 +13,7 @@ primary_entity:
       name: command
       mapping:
         - dps_val: standby
-          value: standby
+          value: stop
         - dps_val: spiral
           value: clean_spot
         - dps_val: wall_follow

custom_components/tuya_local/devices/okp_k2_vacuum.yaml

@@ -16,7 +16,7 @@ primary_entity:
       name: command
       mapping:
         - dps_val: standby
-          value: standby
+          value: stop
         - dps_val: smart
           value: smart
         - dps_val: random

custom_components/tuya_local/devices/rinkmo_d2_vacuum.yaml

@@ -13,7 +13,7 @@ primary_entity:
       type: string
       mapping:
         - dps_val: standby
-          value: standby
+          value: stop
         - dps_val: smart
           value: smart
         - dps_val: wall_follow

custom_components/tuya_local/devices/ultenic_t10_vacuum.yaml

@@ -22,7 +22,7 @@ primary_entity:
       name: command
       mapping:
         - dps_val: standby
-          value: standby
+          value: stop
         - dps_val: random
           value: random
         - dps_val: smart