Fix some weather-forecast card editor issues (#26125)

Author: karwosts

src/panels/lovelace/cards/hui-weather-forecast-card.ts

@@ -464,10 +464,11 @@ class HuiWeatherForecastCard extends LitElement implements LovelaceCard {
     if (this._config?.show_forecast !== false) {
       rows += 1;
       min_rows += 1;
+      if (this._config?.forecast_type === "daily") {
+        rows += 1;
+      }
     }
-    if (this._config?.forecast_type === "daily") {
-      rows += 1;
-    }
+
     return {
       columns: 12,
       rows: rows,

src/panels/lovelace/editor/config-elements/hui-weather-forecast-card-editor.ts

@@ -57,14 +57,15 @@ export class HuiWeatherForecastCardEditor
 
     if (
       /* cannot show forecast in case it is unavailable on the entity */
-      (config.show_forecast === true && this._hasForecast === false) ||
+      (config.show_forecast !== false && this._hasForecast === false) ||
       /* cannot hide both weather and forecast, need one of them */
       (config.show_current === false && config.show_forecast === false)
     ) {
       /* reset to sane default, show weather, but hide forecast */
       fireEvent(this, "config-changed", {
         config: { ...config, show_current: true, show_forecast: false },
       });
+      return;
     }
     if (
       !config.forecast_type ||