fix: silence no-unused-vars lint warnings in interceptors.js and viewer.js

src/inject/interceptors.js

@@ -61,7 +61,7 @@
     this._goon_url = url;
     return originalOpen.apply(this, arguments);
   };
-  XMLHttpRequest.prototype.send = function (body) {
+  XMLHttpRequest.prototype.send = function (_body) {
     if (this._goon_url && typeof this._goon_url === 'string') {
       var resolved = resolveUrl(this._goon_url);
       if (
@@ -78,7 +78,7 @@
 
   // 2. Intercept fetch() for manifest-like requests
   var originalFetch = window.fetch;
-  window.fetch = function (resource, init) {
+  window.fetch = function (resource, _init) {
     var url = typeof resource === 'string' ? resource : resource && resource.url;
     if (url && typeof url === 'string') {
       var resolved = resolveUrl(url);

src/viewer/viewer.js

@@ -198,7 +198,7 @@ async function init() {
   if (hlsEntries.length > 0) {
     try {
       await loadHlsJs();
-    } catch (e) {
+    } catch {
       for (const { panel } of hlsEntries) {
         showError(panel, 'HLS player unavailable - check network.');
       }