Add meridiem to translations

Solves #1359

advanced/esphome/nspanel_esphome_core.yaml

@@ -489,6 +489,7 @@ api:
         date_color: int
         time_format: string
         time_color: int
+        meridiem: string[]
         chip_font_size: int
         notification_icon: string
         notification_icon_color_normal: int[]
@@ -506,6 +507,7 @@ api:
             // Localization
             ESP_LOGV(TAG, "Load localization");
             id(mui_time_format) = time_format;
+            id(mui_meridiem) = meridiem;
 
             // Date/Time colors
             ESP_LOGV(TAG, "Load date/time colors");
@@ -795,6 +797,10 @@ globals:
     type: uint
     restore_value: true
     initial_value: '65535'
+  - id: mui_meridiem
+    type: std::vector<std::string>
+    restore_value: false
+    initial_value: '{"AM", "PM"}'
 
   ##### Chips #####
   - id: home_chip_font_size
@@ -2218,7 +2224,7 @@ script:
           std::string time_format_str = id(mui_time_format);
           if (time_format_str.find("%p") != std::string::npos)
             {
-              std::string meridiem_text = id(time_provider).now().strftime("%p");
+              std::string meridiem_text = (id(time_provider).now().hour<12) ? id(mui_meridiem)[0] : id(mui_meridiem)[1];
               disp1->set_component_text_printf("home.meridiem", "%s", meridiem_text.c_str());
             }
           else { disp1->set_component_text_printf("home.meridiem", " "); }