Module development and code questions

I have a view that is being rendered like this

$view = Views::getView('view_id');
$view->setDisplay('block_1');
$view->execute();
$render = $view->render(); 
$html = \Drupal::service('renderer')->render($render);

The $html variable is being returned in the build method of a Block

public function build() {
    return array(
      '#theme' => 'theme_template',
      '#view' => $html,
    );
  }

Then being outputted in the twig file {{ view }}

The password reset/forgot password one-time link goes to the wrong destination when clicked from Gmail. However, when the link is copied and pasted onto the browser tab, it goes to the right location.

**Example:**

Hello,

I don't know if I'm right in this forum but I didn't find a better one. I need help on the error message above, and I'm not a developer.

I have to customize the input form with CSS. I thought I'd do it with a small example interacting with CSS.
I currently use the bartik theme.
Compared to the normal view of drupal with vertical positioning, below the picture
https://ibb.co/gMpyyqT

I have to position them as indicated by the second image
https://ibb.co/sQ5zYvN

Hello

I'm coming from Drupal 8.7, through 8.9 and I'm now in 9.3

Since D 8.7 I'm repeatedly getting this error whose I like to get rid of. I see it on every page request and it pollutes very much my watchdog. It doesn't seem harming anything though.

I've not the beginning of a clue and  couldn't find anything  that can help on Google.
If someone knows how to solve it or how at least remove this error from filling up my watchdog...

Hi,

I need to send push notification when a content is added to a group.
I just install firebase module,
I see how to send a push message, but I can't see how to get the user's token.