chore(monorepo/electron): introduce global script & rename to desktop

apps/desktop/scripts/electron-forge/desktop.ejs

@@ -0,0 +1,17 @@
+[Desktop Entry]
+<%=
+Object.entries({
+    "Name": productName,
+    "Comment": description,
+    "GenericName": genericName,
+    "Exec": name ? `${name} %U` : undefined,
+    "Icon": name,
+    "Type": "Application",
+    "StartupNotify": "true",
+    "StartupWMClass": productName,
+    "Categories": categories?.length ? `${categories.join(";")};` : undefined,
+    "MimeType": mimeType?.length ? `${mimeType.join(";")};` : undefined
+})
+.map(line => line[1] ? line.join("=") : undefined)
+.filter(line => !!line)
+.join("\n")%>