style: format code and add prettier configuration files

src/app/create-link/create-link.component.html

@@ -1,17 +1,24 @@
 <div class="mx-auto container">
   <app-navbar></app-navbar>
-  <button mat-flat-button class="mt-3" color="warn" (click)="back()">Back</button>
+  <button mat-flat-button class="mt-3" color="warn" (click)="back()">
+    Back
+  </button>
   <mat-card class="mt-3 p-3" appearance="outlined">
     <form class="flex flex-col" [formGroup]="createLinkForm">
       <mat-form-field appearance="outline">
-        <mat-error>{{errorMessages['name']}}</mat-error>
+        <mat-error>{{ errorMessages["name"] }}</mat-error>
         <mat-label>Name</mat-label>
-        <input formControlName="name" matInput placeholder="My Awesome link">
+        <input formControlName="name" matInput placeholder="My Awesome link" />
       </mat-form-field>
       <mat-form-field appearance="outline">
-        <mat-error>{{errorMessages['link']}}</mat-error>
+        <mat-error>{{ errorMessages["link"] }}</mat-error>
         <mat-label>Link</mat-label>
-        <input formControlName="link" matInput type="url" placeholder="https://kjan.de">
+        <input
+          formControlName="link"
+          matInput
+          type="url"
+          placeholder="https://kjan.de"
+        />
       </mat-form-field>
       <button mat-flat-button type="submit" (click)="submit()">Create</button>
     </form>