Improve weather precipitation chart

www/assets/js/toolbox_weather.js

@@ -120,7 +120,8 @@ function loadWeather(reload) {
                                     borderWidth: 0,
                                     spanGaps: true,
                                     backgroundColor: "#03A9F4",
-                                    borderColor: "#03A9F4"
+                                    borderColor: "#03A9F4",
+                                    lineTension: 0.5
                                 }
                             ]
                         },
@@ -161,9 +162,10 @@ function loadWeather(reload) {
                                             drawBorder: false
                                         },
                                         ticks: {
+                                            beginAtZero: true,
                                             min: 0,
-                                            max: Math.round(maxprecip),
-                                            stepSize: (Math.round(maxprecip) / 2),
+                                            autoSkip: true,
+                                            maxTicksLimit: 3,
                                             callback: function (value, index, values) {
                                                 if (getStorage("units") == "metric") {
                                                     return value + ' mm';

www/pages/toolbox/weather.html

@@ -98,7 +98,7 @@
 
                             <div class="row margin-vertical">
                                 <div class="col-100">
-                                    <canvas id="precipchart" width="300" height="50"></canvas>
+                                    <canvas id="precipchart" width="300" height="60"></canvas>
                                 </div>
                             </div>
                         </div>