Update ToS & Privacy Policy in UI (#1467)

Summary: The current links are outdated, and should instead point to the
Linux Foundation's ToS and privacy policy.

Relevant Issues: N/A

Type of change: /kind cleanup

Test Plan: Deploy testing cloud and check footer.

---------

Signed-off-by: Michelle Nguyen <michellenguyen@pixielabs.ai>

src/ui/src/components/footer/footer.tsx

@@ -24,6 +24,7 @@ import { createStyles, makeStyles } from '@mui/styles';
 import { Link } from 'react-router-dom';
 
 import { VersionInfo } from 'app/components/version-info/version-info';
+import { TermsAndPrivacy } from 'configurable/tos-privacy';
 
 const useDefaultStyles = makeStyles(({ spacing, typography, breakpoints, palette }: Theme) => createStyles({
   root: {
@@ -76,12 +77,7 @@ export const Footer = React.memo<FooterProps>(({
   return (
     <div className={classes.root}>
       <div className={classes.left}>
-        <a href='https://pixielabs.ai/terms/' className={classes.text}>
-          Terms & Conditions
-        </a>
-        <a href='https://pixielabs.ai/privacy' className={classes.text}>
-          Privacy Policy
-        </a>
+        <TermsAndPrivacy classes={classes} />
         <div className={classes.text}><VersionInfo /></div>
       </div>
       <div className={classes.right}>

src/ui/src/configurables/base/tos-privacy.tsx

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2018- The Pixie Authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import * as React from 'react';
+
+export const TermsAndPrivacy = React.memo<{ classes: Record<'text', string> }>(({ classes }) => {
+  return (<>
+    <a href='https://www.linuxfoundation.org/terms' className={classes.text}>
+      Terms & Conditions
+    </a>
+    <a href='https://www.linuxfoundation.org/privacy' className={classes.text}>
+      Privacy Policy
+    </a>
+  </>);
+});
+TermsAndPrivacy.displayName = 'TermsAndPrivacy';