fix: allow to select and copy series name from tooltip (openobserve#7025)

![image](https://github.com/user-attachments/assets/759572bd-b471-4841-b105-c403a1854a88)

Author: ktx-abhay

web/src/utils/dashboard/convertPromQLData.ts

@@ -251,7 +251,8 @@ export const convertPromQLData = async (
       enterable: true,
       backgroundColor:
         store.state.theme === "dark" ? "rgba(0,0,0,1)" : "rgba(255,255,255,1)",
-      extraCssText: "max-height: 200px; overflow: auto; max-width: 500px",
+      extraCssText:
+        "max-height: 200px; overflow: auto; max-width: 500px; user-select: text;",
       formatter: function (name: any) {
         // show tooltip for hovered panel only for other we only need axis so just return empty string
         if (
@@ -657,7 +658,8 @@ export const convertPromQLData = async (
             store.state.theme === "dark"
               ? "rgba(0,0,0,1)"
               : "rgba(255,255,255,1)",
-          extraCssText: "max-height: 200px; overflow: auto; max-width: 500px",
+          extraCssText:
+            "max-height: 200px; overflow: auto; max-width: 500px; user-select: text;",
         };
 
         // Set coordinate system options

web/src/utils/dashboard/convertSQLData.ts

@@ -968,7 +968,8 @@ export const convertSQLData = async (
       enterable: true,
       backgroundColor:
         store.state.theme === "dark" ? "rgba(0,0,0,1)" : "rgba(255,255,255,1)",
-      extraCssText: "max-height: 200px; overflow: auto; max-width: 400px",
+      extraCssText:
+        "max-height: 200px; overflow: auto; max-width: 400px; user-select: text;",
       axisPointer: {
         type: "cross",
         label: {
@@ -2115,7 +2116,8 @@ export const convertSQLData = async (
           store.state.theme === "dark"
             ? "rgba(0,0,0,1)"
             : "rgba(255,255,255,1)",
-        extraCssText: "max-height: 200px; overflow: auto; max-width: 500px",
+        extraCssText:
+          "max-height: 200px; overflow: auto; max-width: 500px; user-select: text;",
       };
       options.angleAxis = {
         show: false,