Add a reset camera button and implement default camera reset functionality

frontend/src/app/particles/components/render-container/render-container.component.html

@@ -1,5 +1,10 @@
 <div #rendererContainer class="renderer-container">
   <div class="plane-controls-overlay">
+    <button mat-mini-fab color="primary" (click)="resetCamera()"
+            matTooltip="Reset camera">
+      <mat-icon>location_searching</mat-icon>
+    </button>
+
     <button mat-mini-fab color="primary" (click)="togglePlaneLock()"
             [matTooltip]="isPlaneLocked ? 'Unlock Plane' : 'Lock Plane'">
       <mat-icon>{{ isPlaneLocked ? 'lock' : 'lock_open' }}</mat-icon>

frontend/src/app/particles/components/render-container/render-container.component.ts

@@ -82,6 +82,10 @@ export class RenderContainerComponent implements AfterViewInit, OnDestroy {
     this.intersectionPlaneService.setPlaneLocked(newLockedState);
   }
 
+  public resetCamera(): void {
+    this.rendererService.resetCamera();
+  }
+
   /**
    * Get the current plane orientation
    */

frontend/src/app/particles/services/renderer.service.ts

@@ -54,6 +54,16 @@ export class RendererService {
     this.addLights();
   }
 
+  /**
+   * Resets the camera to its default position and orientation.
+   */
+  public resetCamera(): void {
+    this.camera.position.set(-1, 2, 3);
+    this.camera.lookAt(0, 1, 0);
+    this.controls.target.set(0, 1, 0);
+    this.controls.update();
+  }
+
   /**
    * Adds lighting to the scene
    */