Move all charts into /graphs page - Fix mining charts layouts

frontend/src/app/components/graphs/graphs.component.html

@@ -0,0 +1,25 @@
+<ul ngbNav #nav="ngbNav" class="nav-pills mb-3" style="padding: 0px 35px">
+  <div class="d-inline-flex flex-wrap menu">
+    <li ngbNavItem class="menu-li">
+      <a [routerLink]="['/graphs/mempool' | relativeUrl]" ngbNavLink>Mempool</a>
+    </li>
+    <li ngbNavItem class="menu-li">
+      <a [routerLink]="['/graphs/mining/pools' | relativeUrl]" ngbNavLink i18n="mining.pools">
+        Pools ranking
+      </a>
+    </li>
+    <li ngbNavItem class="menu-li">
+      <a [routerLink]="['/graphs/mining/pools-dominance' | relativeUrl]" ngbNavLink i18n="mining.pools-dominance">
+        Pools dominance
+      </a>
+    </li>
+    <li ngbNavItem class="menu-li">
+      <a [routerLink]="['/graphs/mining/hashrate-difficulty' | relativeUrl]" ngbNavLink
+        i18n="mining.hashrate-difficulty">
+        Hashrate & Difficulty
+      </a>
+    </li>
+  </div>
+</ul>
+
+<router-outlet></router-outlet>

frontend/src/app/components/graphs/graphs.component.scss

@@ -0,0 +1,9 @@
+.menu {
+  flex-grow: 1;
+  max-width: 600px;
+}
+
+.menu-li {
+  flex-grow: 1;
+  text-align: center;
+}

frontend/src/app/components/graphs/graphs.component.ts

@@ -0,0 +1,14 @@
+import { Component, OnInit } from "@angular/core";
+
+@Component({
+  selector: 'app-graphs',
+  templateUrl: './graphs.component.html',
+  styleUrls: ['./graphs.component.scss'],
+})
+export class GraphsComponent implements OnInit {
+  constructor() { }
+
+  ngOnInit(): void {
+
+  }
+}