message: Moved submit button in form
diff: </div>
  <app-password-input [form]="registerForm"></app-password-input>
  -
  + <div>
  <mat-checkbox class="terms-checkbox" formControlName="termsCheckbox">
  <span class="privacy-label">
  {{'auth.registration.acceptCheckboxes' | translate}}
  </a>
  </span>
  </mat-checkbox>
  -
  - </form>
  + </div>
  <button class="register-button" [matTooltip]="'auth.registration.tooltipRegister' | translate" mat-raised-button color="primary" type="submit"
  [disabled]="loading || !registerForm?.valid">{{'common.register'|translate}}
  </button>
  -
  + </form>
  <div class="bottom-buttons">
  <button *ngIf="role == 'student'" mat-button type="button" routerLink="/activation-resend" routerLinkActive="active">
  {{'auth.registration.resendActivationButton'|translate}}
  