feat(编辑能力): 完善缺字诊断，优化字体选择体验

assets/webui/ofdgo_font.js

@@ -80,7 +80,7 @@ export class FontPicker {
 				label.textContent = source;
 				option.append(label);
 			}
-			option.title = font.name || font.fullName;
+			option.title = [...new Set([font.fullName, font.name].filter(Boolean))].join(" · ");
 			this.list.append(option);
 		}
 		if (!this.matches.length) {
@@ -100,9 +100,9 @@ export class FontPicker {
 
 	position() {
 		if (!this.open) return;
-		const rect = this.input.getBoundingClientRect();
+		const rect = this.input.parentElement.getBoundingClientRect();
 		if (rect.right <= 0 || rect.left >= window.innerWidth) { this.close(); return; }
-		const width = Math.min(Math.max(rect.width, 260), window.innerWidth - 16);
+		const width = Math.min(rect.width, window.innerWidth - 16);
 		Object.assign(this.list.style, { left: `${Math.max(8, Math.min(rect.left, window.innerWidth - width - 8))}px`,
 			top: `${rect.bottom + 4}px`, width: `${width}px`, maxHeight: `${Math.max(40, Math.min(280, window.innerHeight - rect.bottom - 12))}px` });
 	}