新增分享 EQ 功能，具体功能还没实现，先用伪代码

client/src/locales/data-en.json

@@ -210,6 +210,7 @@
     "Standard": "Standard equalizer preset",
     "edit": "Batch Edit",
     "headset": "Add HeadSet",
+    "share": "Share EQ",
     "preamp": "Preamp",
     "filters": {
       "label": "Filters",
@@ -352,7 +353,27 @@
       "paramInputInvalid": "Enter a valid number",
       "paramInputOutOfRangeFreq": "Frequency must be between {{min}} and {{max}} Hz",
       "paramInputOutOfRangeGain": "Gain must be between {{min}} and {{max}} dB",
-      "paramInputOutOfRangeQ": "Q must be between {{min}} and {{max}}"
+      "paramInputOutOfRangeQ": "Q must be between {{min}} and {{max}}",
+      "shareTitle": "Share EQ",
+      "shareSelectHint": "Select the EQ preset to share",
+      "shareConfirm": "Generate Code",
+      "shareCodeLabel": "Share Code",
+      "shareCopied": "Code copied",
+      "shareGenerating": "Generating…",
+      "importTab": "Import EQ",
+      "importCodeHint": "Enter or paste the 5-character share code",
+      "importQuery": "Query",
+      "importQuerying": "Querying…",
+      "importCodeNotFound": "Share code not found",
+      "importEqName": "EQ Name",
+      "importButton": "Import",
+      "importSuccess": "EQ imported successfully",
+      "mySharesTab": "My Shares",
+      "mySharesLoading": "Loading…",
+      "mySharesEmpty": "No shared EQ yet",
+      "mySharesCode": "Code",
+      "mySharesName": "EQ Name",
+      "mySharesLoadFail": "Failed to load share list"
     }
   },
   "dac": {