add error handling for no config file found

src/routes/model/+page.svelte

@@ -158,13 +158,21 @@
     }
 
     async function getModuleConf(module){
-        const res = await fetch("http://127.0.0.1:8000/modules/"+module+"/config");
-        const data = await res.json();
-        modalModule.name = module;
-        modalModule.response = JSON.parse(data);
-        modalModule.html= []
-        generateHTML(modalModule.response)
-        modalModule=modalModule;
+        try {
+            const res = await fetch("http://127.0.0.1:8000/modules/" + module + "/config");
+            const data = await res.json();
+            modalModule.name = module;
+            modalModule.response = JSON.parse(data);
+            modalModule.html = []
+            generateHTML(modalModule.response)
+            modalModule = modalModule;
+        }catch (error){
+            console.error(error);
+            modalModule.name = "no";
+            modalModule.response={};
+            modalModule.html=[];
+            modalModule.html.push(new SettingsLabel("No config found!"))
+        }
     }
     function generateHTML(json: object){
         Object.entries(json).forEach(([key, value]) =>{
@@ -179,8 +187,10 @@
                         }
                     }
                     modalModule.html.push(new SettingsSelector(key,value.description,value,options))
-                }else if(value.hasOwnProperty("unit")){
-                    modalModule.html.push((new SettingsNumberfield(key,value.description,value,value.unit)))
+                }else if(value.hasOwnProperty("unit")) {//spaeter entweder unit oder Unit in XML
+                    modalModule.html.push((new SettingsNumberfield(key, value.description, value, value.unit)))
+                }else if(value.hasOwnProperty("Unit")){
+                        modalModule.html.push((new SettingsNumberfield(key,value.description,value,value.Unit)))
                 }else{
                     modalModule.html.push(new SettingsTextfield(key,value.description,value,key))
                 }
@@ -352,7 +362,7 @@
                         {element.description}
                     </Tooltip>
                 {:else if element.type=="numberfield"}
-                    {#if element.unit !="1"&&element.unit !="-" }
+                    {#if element.unit !="1"&&element.unit !="-"&&element.unit!="count"}
                         <h7>{formatLabel(element.label)} (in {element.unit})</h7>
                     {:else}
                         <h7>{formatLabel(element.label)}</h7>