Add config migration process

src/components/Dashboard/Modals/EditAppModal/EditAppModal.tsx

@@ -62,7 +62,7 @@ export const EditAppModal = ({
         },
       },
       behaviour: {
-        onClickUrl: (url: string) => {
+        externalUrl: (url: string) => {
           if (url === undefined || url.length < 1) {
             return null;
           }
@@ -158,7 +158,7 @@ export const EditAppModal = ({
                 {t('tabs.general')}
               </Tabs.Tab>
               <Tabs.Tab
-                rightSection={<ValidationErrorIndicator keys={['behaviour.onClickUrl']} />}
+                rightSection={<ValidationErrorIndicator keys={['behaviour.externalUrl']} />}
                 icon={<IconClick size={14} />}
                 value="behaviour"
               >

src/components/Dashboard/Modals/EditAppModal/Tabs/GeneralTab/GeneralTab.tsx

@@ -35,7 +35,7 @@ export const GeneralTab = ({ form, openTab }: GeneralTabProps) => {
         required
         {...form.getInputProps('url')}
         onChange={(e) => {
-          form.setFieldValue('behaviour.onClickUrl', e.target.value);
+          form.setFieldValue('behaviour.externalUrl', e.target.value);
           form.setFieldValue('url', e.target.value);
         }}
       />
@@ -46,7 +46,7 @@ export const GeneralTab = ({ form, openTab }: GeneralTabProps) => {
         placeholder="https://homarr.mywebsite.com/"
         variant="default"
         mb="md"
-        {...form.getInputProps('behaviour.onClickUrl')}
+        {...form.getInputProps('behaviour.externalUrl')}
       />
     </Tabs.Panel>
   );

src/components/Dashboard/Modals/SelectElement/Components/Overview/AvailableElementsOverview.tsx

@@ -43,7 +43,7 @@ export const AvailableElementTypes = ({
                   },
                   behaviour: {
                     isOpeningNewTab: true,
-                    onClickUrl: '',
+                    externalUrl: '',
                   },
                   area: {
                     type: 'sidebar',