fix: catch errors from malformed MIDI files on import (#6655)

* fix: catch errors from malformed MIDI files on import

Signed-off-by: Ady0333 <adityashinde1525@gmail.com>

* fix: make MIDI import error handling safer and improve logging

---------

Signed-off-by: Ady0333 <adityashinde1525@gmail.com>

Author: Ady0333

js/activity.js

@@ -8341,10 +8341,20 @@ class Activity {
                     };
 
                     midiReader.onload = e => {
-                        const midi = new Midi(e.target.result);
-
-                        console.debug(midi);
-                        midiImportBlocks(midi);
+                        try {
+                            const midi = new Midi(e.target.result);
+                            console.debug(midi);
+                            midiImportBlocks(midi);
+                        } catch (err) {
+                            console.error("MIDI import failed:", err);
+                            if (that && typeof that.errorMsg === "function") {
+                                that.errorMsg(
+                                    _(
+                                        "Cannot load project from the file. Please check the file type."
+                                    )
+                                );
+                            }
+                        }
                     };
 
                     const file = that.fileChooser.files[0];
@@ -8438,10 +8448,18 @@ class Activity {
                     }, 200);
                 };
                 midiReader.onload = e => {
-                    const midi = new Midi(e.target.result);
-
-                    console.debug(midi);
-                    midiImportBlocks(midi);
+                    try {
+                        const midi = new Midi(e.target.result);
+                        console.debug(midi);
+                        midiImportBlocks(midi);
+                    } catch (err) {
+                        console.error("MIDI import failed:", err);
+                        if (that && typeof that.errorMsg === "function") {
+                            that.errorMsg(
+                                _("Cannot load project from the file. Please check the file type.")
+                            );
+                        }
+                    }
                 };
 
                 // Music Block Parser from abc to MB