Add buttons to PMViewUnsignedReport component

frontend/src/Pages/ProjectManagerPages/PMViewUnsignedReport.tsx

@@ -1,9 +1,31 @@
 import BasicWindow from "../../Components/BasicWindow";
+import Button from "../../Components/Button";
 
 function PMViewUnsignedReport(): JSX.Element {
   const content = <></>;
 
-  const buttons = <></>;
+  const buttons = (
+    <>
+      <Button
+        text="Sign"
+        onClick={(): void => {
+          return;
+        }}
+      />
+      <Button
+        text="Save"
+        onClick={(): void => {
+          return;
+        }}
+      />
+      <Button
+        text="Back"
+        onClick={(): void => {
+          return;
+        }}
+      />
+    </>
+  );
 
   return <BasicWindow username="Admin" content={content} buttons={buttons} />;
 }