Fix usage of == in Angular templates

The `@angular-eslint/template/eqeqeq` linting rule forbids usage of the
== operator in Angular component templates, preferring the more type
safe === operator instead.

Lint rule: @angular-eslint/template/eqeqeq

src/app/apps/components/connector/connector.component.html

@@ -17,7 +17,7 @@
           id="connector-connect"
           [hidden]="connected"
           (click)="connect()"
-          [disabled]="waiting || connector.type == 'type.connector.facebook'">
+          [disabled]="waiting || connector.type === 'type.connector.facebook'">
     {{ connectText || 'Connect' }}
   </button>
   <button class="btn btn-primary" [hidden]="!folder" (click)="goToFolder()" [disabled]="waiting"

src/app/file-browser/components/file-viewer/file-viewer.component.html

@@ -16,9 +16,9 @@
       *ngFor="let record of records; let i = index"
       [hidden]="!isQueued(i)"
       [ngClass]="{
-        prev: i == currentIndex - 1,
-        next: i == currentIndex + 1,
-        current: i == currentIndex,
+        prev: i === currentIndex - 1,
+        next: i === currentIndex + 1,
+        current: i === currentIndex,
         queue: isQueued(i)
       }"
     >
@@ -28,7 +28,7 @@
         [bgSrc]="record.thumbURL200"
         *ngIf="isQueued(i)"
       ></div>
-      <div *ngIf="currentRecord == record" class="full" [ngSwitch]="">
+      <div *ngIf="currentRecord === record" class="full" [ngSwitch]="">
         <pr-thumbnail
           (disableSwipe)="toggleSwipe($event)"
           (isFullScreen)="toggleFullscreen($event)"