Advanced hysteresis settings (#201)

* feat: added more hysteresis settings

* fix: heating hysteresis switch fixed

* refactor: added localization for hysteresis

src_data/locales/cn.json

@@ -356,7 +356,16 @@
       },
 
       "heating": {
-        "hyst": "滞后值<small>(单位：度)</small>",
+        "hyst": {
+          "title": "滞回",
+          "desc": "滞回有助于维持设定的室内温度（在使用«Equitherm»和/或«PID»时）。强制禁用加热当<code>current indoor > target + value</code>，启用加热当<code>current indoor < (target - value)</code>。",
+          "value": "值 <small>(以度为单位)</small>",
+          "action": {
+            "title": "行动",
+            "disableHeating": "禁用加热",
+            "set0target": "设置空目标"
+          }
+        },
         "turboFactor": "Turbo 模式系数"
       },