chore: fix incorrect alt text wavetermdev#682 (wavetermdev#685)

fix wavetermdev#682
new look:

![image](https://github.com/wavetermdev/waveterm/assets/113882203/c51145c0-a34d-4c45-824c-15e205fe74bd)

Author: luckrnx09

src/app/line/linecomps.tsx

@@ -178,7 +178,7 @@ class LineActions extends React.Component<{ screen: LineContainerType; line: Lin
             <div className="line-actions">
                 <Choose>
                     <When condition={containerType == appconst.LineContainer_Main}>
-                        <div key="chat" title="Restart Command" className="line-icon" onClick={this.clickChat}>
+                        <div key="chat" title="Ask Wave AI" className="line-icon" onClick={this.clickChat}>
                             <i className="fa-sharp fa-regular fa-sparkles fa-fw" />
                         </div>
                         <div key="restart" title="Restart Command" className="line-icon" onClick={this.clickRestart}>