Add localization to the tooltip-porcentage-mode fields with the Spanish translation (#1090)

* Add localization to the tooltip-porcentage-mode fields, as well the Spanish translation

* Fix Spanish translation for showTooltipPercentage

* Fix plural Spanish translation

Extensions/combined/_locales/en/messages.json

@@ -130,5 +130,17 @@
   },
   "colorTheme": {
     "message": "Color theme:"
+  },
+  "showTooltipPercentage": {
+    "message": "Percentage in like/dislike bar tooltip."
+  },
+  "showTooltipPercentageHover": {
+    "message": "Display percentage in like/dislike bar tooltip."
+  },
+  "tooltipPercentageMode": {
+    "message": "Percent mode:"
+  },
+  "tooltipPercentageModeHover": {
+    "message": "Use custom percentage display on hover."
   }
 }

Extensions/combined/_locales/es/messages.json

@@ -130,5 +130,17 @@
   },
   "colorTheme": {
     "message": "Combinación de colores:"
+  },
+  "showTooltipPercentage": {
+    "message": "Porcentaje en el tooltip de la barra de like/dislike."
+  },
+  "showTooltipPercentageHover": {
+    "message": "Mostrar porcentaje en el tooltip de la barra de like/dislike."
+  },
+  "tooltipPercentageMode": {
+    "message": "Modo de porcentaje:"
+  },
+  "tooltipPercentageModeHover": {
+    "message": "Usar visualización de porcentaje personalizada al pasar el puntero."
   }
 }

Extensions/combined/popup.html

@@ -178,17 +178,17 @@
       <br />
       <label
         class="switch"
-        data-hover="Display percentage in like/dislike bar tooltip."
+        data-hover="__MSG_showTooltipPercentageHover__"
       >
         <input type="checkbox" id="show_tooltip_percentage" />
         <span class="slider"></span>
-        <span class="switchLabel">Percentage in like/dislike bar tooltip.</span>
+        <span class="switchLabel">__MSG_showTooltipPercentage__</span>
       </label>
       <div class="custom-select">
         <label
           for="tooltip_percentage_mode"
-          data-hover="Use custom percentage display on hover."
-          >Percent mode:</label
+          data-hover="__MSG_tooltipPercentageModeHover__"
+          >__MSG_tooltipPercentageMode__</label
         >
         <select name="tooltip_percentage_mode" id="tooltip_percentage_mode">
           <option value="dash_like" id="tooltip_percentage_mode_dash_like">