rework modals and more

ui/src/app/modals/markdown/markdown.page.ts

@@ -0,0 +1,19 @@
+import { Component, Input } from '@angular/core'
+import { ModalController } from '@ionic/angular'
+
+@Component({
+  selector: 'markdown',
+  templateUrl: './markdown.page.html',
+  styleUrls: ['./markdown.page.scss'],
+})
+export class MarkdownPage {
+  @Input() content: string
+
+  constructor (
+    private readonly modalCtrl: ModalController,
+  ) { }
+
+  async dismiss () {
+    return this.modalCtrl.dismiss(true)
+  }
+}