Simplify internationalization key in moderation

In keys like `hide_debates`, the suffix part is redundant when that key
is part of an absoulte key starting with `moderation.debates`.

This change will make it easier to remove duplication in moderation
views.

app/views/moderation/budgets/investments/index.html.erb

@@ -57,7 +57,7 @@
                  data: { confirm: t("moderation.budget_investments.index.confirm") } %>
 
   <div class="float-right">
-    <%= submit_tag t("moderation.budget_investments.index.hide_budget_investments"),
+    <%= submit_tag t("moderation.budget_investments.index.hide"),
                    name: "hide_budget_investments",
                    class: "button hollow alert",
                    data: { confirm: t("moderation.budget_investments.index.confirm") } %>

app/views/moderation/comments/index.html.erb

@@ -55,7 +55,7 @@
                  data: { confirm: t("moderation.comments.index.confirm") } %>
 
   <div class="float-right">
-    <%= submit_tag t("moderation.comments.index.hide_comments"),
+    <%= submit_tag t("moderation.comments.index.hide"),
                    name: "hide_comments",
                    class: "button hollow alert",
                    data: { confirm: t("moderation.comments.index.confirm") } %>

app/views/moderation/debates/index.html.erb

@@ -54,7 +54,7 @@
                  data: { confirm: t("moderation.debates.index.confirm") } %>
 
   <div class="float-right">
-    <%= submit_tag t("moderation.debates.index.hide_debates"),
+    <%= submit_tag t("moderation.debates.index.hide"),
                    name: "hide_debates",
                    class: "button hollow alert",
                    data: { confirm: t("moderation.debates.index.confirm") } %>

app/views/moderation/proposal_notifications/index.html.erb

@@ -53,7 +53,7 @@
                  data: { confirm: t("moderation.proposal_notifications.index.confirm") } %>
 
   <div class="float-right">
-    <%= submit_tag t("moderation.proposal_notifications.index.hide_proposal_notifications"),
+    <%= submit_tag t("moderation.proposal_notifications.index.hide"),
                    name: "hide_proposal_notifications",
                    class: "button hollow alert",
                    data: { confirm: t("moderation.proposal_notifications.index.confirm") } %>

app/views/moderation/proposals/index.html.erb

@@ -54,7 +54,7 @@
                  data: { confirm: t("moderation.proposals.index.confirm") } %>
 
   <div class="float-right">
-    <%= submit_tag t("moderation.proposals.index.hide_proposals"),
+    <%= submit_tag t("moderation.proposals.index.hide"),
                    name: "hide_proposals",
                    class: "button hollow alert",
                    data: { confirm: t("moderation.proposals.index.confirm") } %>

config/locales/en/moderation.yml

@@ -12,7 +12,7 @@ en:
         headers:
           comment: Comment
           moderate: Moderate
-        hide_comments: Hide comments
+        hide: Hide comments
         ignore_flags: Mark as viewed
         order: Order
         orders:
@@ -34,7 +34,7 @@ en:
         headers:
           debate: Debate
           moderate: Moderate
-        hide_debates: Hide debates
+        hide: Hide debates
         ignore_flags: Mark as viewed
         order: Order
         orders:
@@ -62,7 +62,7 @@ en:
         headers:
           moderate: Moderate
           proposal: Proposal
-        hide_proposals: Hide proposals
+        hide: Hide proposals
         ignore_flags: Mark as viewed
         order: Order by
         orders:
@@ -81,7 +81,7 @@ en:
         headers:
           moderate: Moderate
           budget_investment: Budget investment
-        hide_budget_investments: Hide budget investments
+        hide: Hide budget investments
         ignore_flags: Mark as viewed
         order: Order by
         orders:
@@ -100,7 +100,7 @@ en:
         headers:
           moderate: Moderate
           proposal_notification: Proposal notification
-        hide_proposal_notifications: Hide proposals
+        hide: Hide proposals
         ignore_flags: Mark as viewed
         order: Order by
         orders:

config/locales/es/moderation.yml

@@ -12,7 +12,7 @@ es:
         headers:
           comment: Comentario
           moderate: Moderar
-        hide_comments: Ocultar comentarios
+        hide: Ocultar comentarios
         ignore_flags: Marcar como revisados
         order: Orden
         orders:
@@ -34,7 +34,7 @@ es:
         headers:
           debate: Debate
           moderate: Moderar
-        hide_debates: Ocultar debates
+        hide: Ocultar debates
         ignore_flags: Marcar como revisados
         order: Orden
         orders:
@@ -62,7 +62,7 @@ es:
         headers:
           moderate: Moderar
           proposal: Propuesta
-        hide_proposals: Ocultar Propuestas
+        hide: Ocultar Propuestas
         ignore_flags: Marcar como revisadas
         order: Ordenar por
         orders:
@@ -81,7 +81,7 @@ es:
         headers:
           moderate: Moderar
           budget_investment: Proyecto de gasto
-        hide_budget_investments: Ocultar proyectos de gasto
+        hide: Ocultar proyectos de gasto
         ignore_flags: Marcar como revisados
         order: Ordenar por
         orders:
@@ -100,7 +100,7 @@ es:
         headers:
           moderate: Moderar
           proposal_notification: Notificación de propuesta
-        hide_proposal_notifications: Ocultar notificaciones
+        hide: Ocultar notificaciones
         ignore_flags: Marcar como revisadas
         order: Ordenar por
         orders: