fix: Use cluster instead of network in section headers

Author: mvines

src/v2/components/Dashboard/NetworkOverview/index.jsx

@@ -40,7 +40,7 @@ const NetworkOverview = () => {
       <SectionHeader
         title={
           <div>
-            Network Overview <div className={classes.betaLabel}>Beta</div>
+            Cluster Overview
           </div>
         }
       />

src/v2/components/Header/index.jsx

@@ -57,7 +57,7 @@ const Header = () => {
             <div>Every 5 sec</div>
           </div>
           <div className={classes.endpointSelector}>
-            <div className={classes.selectTitle}>Network:</div>
+            <div className={classes.selectTitle}>Cluster:</div>
             <EndpointSelector />
           </div>
           <IconButton

src/v2/components/NavBar/index.jsx

@@ -164,7 +164,7 @@ const NavBar = ({
         <List component="div" classes={{root: classes.listRoot}}>
           {map(renderLink)(routes)}
           <div className={classes.endpointSelector}>
-            <div className={classes.endpointSelectorTitle}>Network:</div>
+            <div className={classes.endpointSelectorTitle}>Cluster:</div>
             <EndpointSelector />
           </div>
         </List>