Add grid cell selection and details

src/i18n/locales/en.ts

@@ -86,6 +86,11 @@ export default {
     copyCell: "Copy Cell",
     copyRow: "Copy Row (JSON)",
     copyAll: "Copy All (TSV)",
+    copySelectionTsv: "Copy Selection (TSV)",
+    copySelectionCsv: "Copy Selection (CSV)",
+    copySelectionJson: "Copy Selection (JSON)",
+    copySelectionSql: "Copy Selection as SQL IN List",
+    clearSelection: "Clear Selection",
     exportCsv: "Export CSV",
     exportJson: "Export JSON",
     exportMarkdown: "Export Markdown",
@@ -105,6 +110,20 @@ export default {
     statusEdited: "Edited",
     statusDeleted: "Deleted",
     pendingChanges: "{count} pending",
+    selectedCells: "{count} selected",
+    cellDetails: "Cell Details",
+    cellValue: "Value",
+    columnName: "Column",
+    columnType: "Type",
+    columnComment: "Comment",
+    rowNumber: "Row",
+    valueLength: "Length",
+    nullValue: "NULL",
+    noComment: "No comment",
+    formattedJson: "Formatted JSON",
+    copyValue: "Copy Value",
+    copyColumnName: "Copy Column Name",
+    copySqlCondition: "Copy SQL Condition",
     rowsPerPageShort: " rows",
   },
   welcome: {

src/i18n/locales/zh-CN.ts

@@ -88,6 +88,11 @@ export default {
     copyCell: "复制单元格",
     copyRow: "复制行 (JSON)",
     copyAll: "复制全部 (TSV)",
+    copySelectionTsv: "复制选区 (TSV)",
+    copySelectionCsv: "复制选区 (CSV)",
+    copySelectionJson: "复制选区 (JSON)",
+    copySelectionSql: "复制选区为 SQL IN 列表",
+    clearSelection: "清除选区",
     exportCsv: "导出 CSV",
     exportJson: "导出 JSON",
     exportMarkdown: "导出 Markdown",
@@ -107,6 +112,20 @@ export default {
     statusEdited: "已改",
     statusDeleted: "删除",
     pendingChanges: "{count} 项待保存",
+    selectedCells: "已选 {count} 个单元格",
+    cellDetails: "单元格详情",
+    cellValue: "值",
+    columnName: "列名",
+    columnType: "类型",
+    columnComment: "注释",
+    rowNumber: "行号",
+    valueLength: "长度",
+    nullValue: "NULL",
+    noComment: "暂无注释",
+    formattedJson: "格式化 JSON",
+    copyValue: "复制值",
+    copyColumnName: "复制列名",
+    copySqlCondition: "复制 SQL 条件",
     rowsPerPageShort: " 行/页",
   },
   welcome: {