Fix line-height, fix script editor buttons (#26337)

* Fix line-height

* Fix script root buttons

src/components/ha-button.ts

@@ -67,6 +67,7 @@ export class HaButton extends Button {
           );
 
           font-size: var(--ha-font-size-m);
+          line-height: 1;
         }
 
         :host([size="small"]) .button {

src/panels/config/script/manual-script-editor.ts

@@ -196,6 +196,7 @@ export class HaManualScriptEditor extends LitElement {
         .hass=${this.hass}
         .narrow=${this.narrow}
         .disabled=${this.disabled}
+        root
       ></ha-automation-action>
     `;
   }