fix: Show version number with card loading spinner (#1825)

- Closes #1818

**Why add this?**: A repeated pattern is that an issue is fixed in the
card, a new build is released and users will incorrectly believe it's
not yet fixed due to their browser caching the old code. This results in
wasting their time, and my time.

**But it's obnoxious!**: I'm pretty sensitive to this (hence adding
these messages!), so let me know how terrible you find it. You can
disable it with:

```yaml
performance:
  features:
    card_loading_indicator: false
```

src/editor.ts

@@ -177,6 +177,7 @@ import {
   CONF_MENU_POSITION,
   CONF_MENU_STYLE,
   CONF_PERFORMANCE_FEATURES_ANIMATED_PROGRESS_INDICATOR,
+  CONF_PERFORMANCE_FEATURES_CARD_LOADING_INDICATOR,
   CONF_PERFORMANCE_FEATURES_MAX_SIMULTANEOUS_ENGINE_REQUESTS,
   CONF_PERFORMANCE_FEATURES_MEDIA_CHUNK_SIZE,
   CONF_PERFORMANCE_PROFILE,
@@ -2965,6 +2966,10 @@ export class FrigateCardEditor extends LitElement implements LovelaceCardEditor
                 'config.performance.features.editor_label',
                 'mdi:feature-search',
                 html`
+                  ${this._renderSwitch(
+                    CONF_PERFORMANCE_FEATURES_CARD_LOADING_INDICATOR,
+                    this._defaults.performance.features.card_loading_indicator,
+                  )}
                   ${this._renderSwitch(
                     CONF_PERFORMANCE_FEATURES_ANIMATED_PROGRESS_INDICATOR,
                     this._defaults.performance.features.animated_progress_indicator,