refactor: add individual EPS sensor and update display settings in energy flow card configuration

- Introduced a new individual entity for EPS power with customizable display options.
- Updated display settings to include zero line visibility and transparency adjustments for improved user experience.

energy_flow_card_config.yaml

@@ -17,4 +17,20 @@ entities:
     color_circle: true
   home:
     color_icon: true
+  individual:
+    - entity: sensor.eps_power
+      secondary_info: {}
+      icon: mdi:account
+      name: eps
+      color_value: true
+      display_zero: true
+      color_icon: true
 watt_threshold: 10000
+display_zero_lines:
+  mode: show
+  transparency: 50
+  grey_color:
+    - 189
+    - 189
+    - 189
+clickable_entities: true