Update our Terms of Service, split Privacy Policy into its own page

frontend/src/app/components/privacy-policy/privacy-policy.component.html

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+<div class="container-xl">
+  <div class="text-center">
+    <br>
+    <img [src]="officialMempoolSpace ? './resources/mempool-space-logo-bigger.png' : './resources/mempool-logo-bigger.png'" style="width: 250px;height:63px;">
+    <br><br>
+
+    <h2>Privacy Policy</h2>
+    <h6>Updated: August 2, 2021</h6>
+
+    <br><br>
+
+    <div class="text-left">
+
+      <h4>TRUSTED THIRD PARTIES ARE SECURITY HOLES</h4>
+
+      <ul>
+        <li>We do not use any third-party analytics, trackers, or cookies.</li>
+        <li>We do not share any private user data with third-parties.</li>
+      </ul>
+
+      <h4>TRUSTED FIRST PARTIES ARE ALSO SECURITY HOLES</h4>
+
+      <ul>
+        <li>Your IP address may be collected in our webserver logs used for sysadmin purposes.</li>
+        <li>Your IP address may be collected in our self-hosted statistics matomo app.</li>
+      </ul>
+
+      <h4>DON'T TRUST US, PROTECT YOUR PRIVACY</h4>
+
+      <ul>
+        <li>Use a Tor Browser or a privacy VPN service to hide your IP address from us.</li>
+        <li>Use a self-hosted instance of The Mempool Open Source Project&trade; on your own hardware.</li>
+      </ul>
+
+      <h4>IF YOU DONATE TO MEMPOOL.SPACE</h4>
+
+      <ul>
+        <li>Your payment information, together with your Twitter identity (if provided) will be collected.</li>
+        <li>We display sponsor profiles publicly on <a href="https://mempool.space/about">mempool.space/about</a>.</li>
+        <li>Thank you :)</li>
+      </ul>
+
+      <p>EOF</p>
+
+    </div>
+
+  </div>
+
+  <br><br>
+
+</div>

frontend/src/app/components/privacy-policy/privacy-policy.component.ts

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+import { Component } from '@angular/core';
+import { Env, StateService } from '../../services/state.service';
+
+@Component({
+  selector: 'app-privacy-policy',
+  templateUrl: './privacy-policy.component.html',
+  styleUrls: ['./privacy-policy.component.scss']
+})
+export class PrivacyPolicyComponent {
+  officialMempoolSpace = this.stateService.env.OFFICIAL_MEMPOOL_SPACE;
+
+  constructor(
+    private stateService: StateService,
+  ) { }
+}