fix: localize hardcoded alert() strings and fix GraphicsBlocks tests

Author: vanshika2720

js/activity.js

@@ -7954,7 +7954,9 @@ class Activity {
                                         },
                                         () => {
                                             alert(
-                                                "Something went wrong reading JSON-encoded project data."
+                                                _(
+                                                    "Something went wrong reading JSON-encoded project data."
+                                                )
                                             );
                                         }
                                     );

js/blocks/ProgramBlocks.js

@@ -1472,7 +1472,7 @@ function setupProgramBlocks(activity) {
                     win.focus();
                 } else {
                     // Browser has blocked it.
-                    alert("Please allow popups for this site");
+                    alert(_("Please allow popups for this site"));
                 }
             }
         }

js/blocks/__tests__/GraphicsBlocks.test.js

@@ -80,7 +80,9 @@ describe("GraphicsBlocks", () => {
         };
 
         activity = {
-            blocks: {},
+            blocks: {
+                blockList: {}
+            },
             errorMsg: jest.fn(),
             turtles: {
                 companionTurtle: jest.fn(() => 0),

js/loader.js

@@ -321,7 +321,8 @@ requirejs(["i18next", "i18nextHttpBackend"], function (i18next, i18nextHttpBacke
                             console.error(
                                 "FATAL: createjs (EaselJS/TweenJS) not found. Cannot proceed."
                             );
-                            alert("Failed to load EaselJS. Please refresh the page.");
+                            const t_ = typeof _ === "function" ? _ : s => s;
+                            alert(t_("Failed to load EaselJS. Please refresh the page."));
                             return;
                         }
 
@@ -333,15 +334,18 @@ requirejs(["i18next", "i18nextHttpBackend"], function (i18next, i18nextHttpBacke
                             },
                             function (err) {
                                 console.error("Failed to load activity/activity:", err);
-                                alert("Failed to load Music Blocks. Please refresh the page.");
+                                const t_ = typeof _ === "function" ? _ : s => s;
+                                alert(t_("Failed to load Music Blocks. Please refresh the page."));
                             }
                         );
                     }, 100); // Small delay to allow globals to be set
                 },
                 function (err) {
                     console.error("Core bootstrap failed:", err);
+                    const t_ = typeof _ === "function" ? _ : s => s;
                     alert(
-                        "Failed to initialize Music Blocks core. Please refresh the page.\n\nError: " +
+                        t_("Failed to initialize Music Blocks core. Please refresh the page.") +
+                            "\n\nError: " +
                             (err.message || err)
                     );
                 }

js/utils/synthutils.js

@@ -1100,7 +1100,7 @@ function Synth() {
             if (fileName) {
                 download(url, fileName + (platform.FF ? ".wav" : ".ogg"));
             } else {
-                alert("Download cancelled.");
+                alert(_("Download cancelled."));
             }
         };
         // this.recorder.start();
@@ -1992,7 +1992,10 @@ function Synth() {
                 if (Tone.context.state !== "running" && !window.hasShownAudioWarning) {
                     window.hasShownAudioWarning = true;
                     alert(
-                        "⚠️ Sound is disabled!\n\nPlease check your browser settings (Site Settings > Sound) to allow audio for Music Blocks."
+                        "⚠️ " +
+                            _(
+                                "Sound is disabled! Please check your browser settings (Site Settings > Sound) to allow audio for Music Blocks."
+                            )
                     );
                 }
             }, 2000);

js/widgets/sampler.js

@@ -2247,7 +2247,7 @@ function SampleWidget() {
             this.pitchDetectionAnimationId = requestAnimationFrame(updatePitch);
         } catch (err) {
             console.error(`${err.name}: ${err.message}`);
-            alert("Microphone access failed: " + err.message);
+            alert(_("Microphone access failed: ") + err.message);
             // Clean up any partially initialized resources
             this.stopPitchDetection();
         }