Refresh button label (#112)

* Update ECU refresh button label

* Update snapshot

* remove

src/components/App/__snapshots__/App.test.js.snap

@@ -7222,7 +7222,7 @@ exports[`App Route /vehicle-status authenticated 1`] = `
                     <span
                       class="MuiButton-label"
                     >
-                      Update
+                      Refresh
                     </span>
                     <span
                       class="MuiTouchRipple-root"

src/components/Cars/Status/index.jsx

@@ -69,7 +69,7 @@ const MainForm = () => {
             className={clsx(classes.formControl, classes.textField)}
             onClick={updateHandler}
           >
-            {busy ? "Sending..." : "Update"}
+            {busy ? "Sending..." : "Refresh"}
           </Button>
         </Grid>
       </Grid>