Fix unused var and pseudorandom warnings

src/utils/dashboard.js

@@ -61,7 +61,7 @@ export async function serverAddress() {
                 let config;
                 try {
                     config = await resp.json();
-                } catch (err) {
+                } catch {
                     return;
                 }
 

src/utils/number.ts

@@ -9,6 +9,7 @@ function toLocaleStringSupportsOptions() {
  * @returns {number} Randomly generated number.
  */
 export function randomInt(min: number, max: number): number {
+    // eslint-disable-next-line sonarjs/pseudo-random
     return Math.floor(Math.random() * (max - min + 1)) + min;
 }