CSSTUDIO-2572 Set alignment and width.

Author: abrahamwolk

app/logbook/olog/ui/src/main/resources/org/phoebus/logbook/olog/ui/LogEntryDisplay.fxml

@@ -34,7 +34,7 @@
                               text="%ShowHideLogEntryGroup" disable="true" onAction="#showHideLogEntryGroup"/>
                 <Region fx:id="spring" /> <!-- Spring to make the next elements right-aligned. -->
                 <Label text="Jump to log-entry: " />
-                <TextField fx:id="jumpToLogEntryTextField" onAction="#jumpToLogEntry"/>
+                <TextField fx:id="jumpToLogEntryTextField" onAction="#jumpToLogEntry" alignment="CENTER" prefWidth="100"/>
                 <Button fx:id="goBackButton" mnemonicParsing="false"
                         onAction="#goBack" text="%Back" disable="true" />
                 <Button fx:id="goForwardButton" mnemonicParsing="false"