fix: some bug fixes

src/components/modals/main/settings/FileUpload.jsx

@@ -19,7 +19,9 @@ export default class FileUpload extends React.PureComponent {
         reader.readAsDataURL(file);
       }
 
-      reader.addEventListener('load', (e) => this.props.loadFunction(e));
+      reader.addEventListener('load', (e) => {
+        this.props.loadFunction(e);
+      });
     };
   }
 

src/components/modals/main/settings/Slider.jsx

@@ -30,7 +30,7 @@ export default class Slider extends React.PureComponent {
       value: this.props.default
     });
 
-    toast(this.language.toasts.reset);
+    toast(window.language.toasts.reset);
     EventBus.dispatch('refresh', this.props.category);
   }
 

src/components/modals/main/settings/Text.jsx

@@ -42,7 +42,7 @@ export default class Text extends React.PureComponent {
       value: this.props.default || ''
     });
 
-    toast(this.language.toasts.reset);
+    toast(window.language.toasts.reset);
     EventBus.dispatch('refresh', this.props.category);
   }
 

src/components/modals/main/settings/sections/About.jsx

@@ -64,7 +64,7 @@ export default class About extends React.PureComponent {
   }
 
   componentDidMount() {
-    if (localStorage.getItem('offlineMode') === 'true') {
+    if (navigator.onLine === false || localStorage.getItem('offlineMode') === 'true') {
       this.setState({
         update: this.language.version.offline_mode
       });

src/components/modals/main/settings/sections/Advanced.jsx

@@ -22,9 +22,9 @@ export default class AdvancedSettings extends React.PureComponent {
   settingsImport(e) {
     const content = JSON.parse(e.target.result);
 
-    for (const key of Object.keys(content)) {
+    Object.keys(content).forEach((key) => {
       localStorage.setItem(key, content[key]);
-    }
+    });
 
     toast(window.language.toasts.imported);
   }

src/components/modals/main/settings/sections/Changelog.jsx

@@ -29,7 +29,7 @@ export default class Changelog extends React.PureComponent {
   }
   
   componentDidMount() {
-    if (localStorage.getItem('offlineMode') === 'true') {
+    if (navigator.onLine || localStorage.getItem('offlineMode') === 'true') {
       return;
     }
   

src/components/modals/main/settings/sections/Order.jsx

@@ -78,7 +78,7 @@ export default class OrderSettings extends React.PureComponent {
       items: JSON.parse(localStorage.getItem('order'))
     });
 
-    toast(this.language.toasts.reset);
+    toast(window.language.toasts.reset);
   }
 
   componentDidUpdate() {

src/components/modals/main/settings/sections/background/Background.jsx

@@ -30,18 +30,12 @@ export default class BackgroundSettings extends React.PureComponent {
     this.setState({
       customBackground: ''
     });
-    toast(this.language.toasts.reset);
+    toast(window.language.toasts.reset);
     EventBus.dispatch('refresh', 'background');
   }
 
   customBackground(e, text) {
-    let result;
-    if (text === true) {
-      result = e.target.value;
-    } else {
-      result = e.target.result;
-    }
-  
+    const result = (text === true) ? e.target.value : e.target.result;
     localStorage.setItem('customBackground', result);
     this.setState({
       customBackground: result
@@ -83,6 +77,10 @@ export default class BackgroundSettings extends React.PureComponent {
   }
 
   componentDidMount() {
+    if (navigator.onLine === false || localStorage.getItem('offlineMode') === 'true') {
+      return;
+    }
+
     this.getBackgroundCategories();
   }