Normalize action-button wording and add icons app-wide

"New X" becomes "Create X" throughout (users, events, assets, menu
items, nodes), matching the verb-first pattern the dashboard's own
signposts already established, with a shared plus icon rather than a
document-flavored one that only made sense next to "post". The
"Destroy"/"destroy"/"Delete" family is normalized to "Destroy"
everywhere, with a shared trash icon; occurrences#index and
pages#index also pick up the destructive button class they'd been
silently missing. Filter and Search convert from submit_tag to
button_tag, the only way either can hold an icon alongside its label.

Edit and the node editor's three dynamic labels (Continue Editing /
Edit Draft / Lock + Edit) share one icon without touching their
wording -- unlike Destroy's family, the state nuance in the text is
real information, not just inconsistent phrasing.

5 files changed, 25 insertions, 12 deletions

diff --git a/app/views/nodes/_node_list.html.erb b/app/views/nodes/_node_list.html.erb
index 03f38b4..f7210f1 100644
--- a/app/views/nodes/_node_list.html.erb
+++ b/app/views/nodes/_node_list.html.erb
@@ -4,7 +4,9 @@
   <% end %>
   <%= hidden_field_tag :tags, params[:tags] if params[:tags].present? %>
   <%= text_field_tag :q, params[:q], placeholder: "Search title, abstract, body…" %>
-  <%= submit_tag "Search", class: "action_button" %>
+  <%= button_tag type: "submit", class: "action_button" do %>
+    <%= icon("search", library: "tabler", "aria-hidden": true) %> Search
+  <% end %>
   <% if params[:q].present? || params[:kinds].present? || params[:tags].present? %>
     <%= link_to "Reset", url_for(controller: params[:controller], action: params[:action]) %>
   <% end %>
diff --git a/app/views/nodes/chapters.html.erb b/app/views/nodes/chapters.html.erb
index 939f19c..543bc53 100644
--- a/app/views/nodes/chapters.html.erb
+++ b/app/views/nodes/chapters.html.erb
@@ -1,9 +1,11 @@
 <h1>Chapters</h1>
 
-<%= form_tag chapters_nodes_path, method: :get do %>
+<%= form_tag chapters_nodes_path, method: :get, class: "node_search_form" do %>
   <label><%= check_box_tag 'kinds[]', 'erfa', @kind_keys.include?('erfa') %> Erfa</label>
   <label><%= check_box_tag 'kinds[]', 'chaostreff', @kind_keys.include?('chaostreff') %> Chaostreff</label>
-  <%= submit_tag "Filter", class: "action_button" %>
+  <%= button_tag type: "submit", class: "action_button" do %>
+    <%= icon("filter", library: "tabler", "aria-hidden": true) %> Filter
+  <% end %>
 <% end %>
 
 <%= render 'node_list' %>
diff --git a/app/views/nodes/edit.html.erb b/app/views/nodes/edit.html.erb
index 13b78fc..1ac05e0 100644
--- a/app/views/nodes/edit.html.erb
+++ b/app/views/nodes/edit.html.erb
@@ -6,9 +6,11 @@
         disabled: @node.autosave.present? %>
 
   <% if @node.autosave || (@node.draft && @node.head) %>
-    <%= button_to (@node.draft && !@node.autosave ? 'Destroy Draft' : 'Discard Autosave'),
-          revert_node_path(@node), method: :put,
-          form: { data: { confirm: "This cannot be undone. Continue?" }, class: 'button_to destructive' } %>
+    <%= button_to revert_node_path(@node), method: :put,
+              form: { data: { confirm: "This cannot be undone. Continue?" }, class: 'button_to destructive' } do %>
+      <%= icon("trash", library: "tabler", "aria-hidden": true) %>
+      <%= @node.draft && !@node.autosave ? "Destroy Draft" : "Discard Autosave" %>
+    <% end %>
     <% if pair = @node.available_layer_pairs.find { |p| p.include?(:autosave) } %>
       <%= button_to 'What changed?',
             diff_node_revisions_path(@node),
diff --git a/app/views/nodes/index.html.erb b/app/views/nodes/index.html.erb
index 2688ea1..3bb251c 100644
--- a/app/views/nodes/index.html.erb
+++ b/app/views/nodes/index.html.erb
@@ -1,7 +1,9 @@
 <h1>Nodes</h1>
 
 <div>
-  <%= link_to 'New node', new_node_path, class: 'action_button' %>
+  <%= link_to new_node_path, class: 'action_button' do %>
+    <%= icon("plus", library: "tabler", "aria-hidden": true) %> Create node
+  <% end %>
   <span class="field_hint">Creates a node with no parent or kind set — for a specific page, use the wizard's create flow or "add child" from an existing node instead.</span>
 </div>
 
diff --git a/app/views/nodes/show.html.erb b/app/views/nodes/show.html.erb
index 07cb5d1..6e20258 100644
--- a/app/views/nodes/show.html.erb
+++ b/app/views/nodes/show.html.erb
@@ -25,7 +25,10 @@
           <% if locked_by_other %>
             <span class="disabled_action"><%= edit_label %></span>
           <% else %>
-            <%= link_to (@node.autosave ? "Continue Editing" : (@node.draft ? "Edit Draft" : "Lock + Edit")), edit_node_path(@node), class: "action_button" %>
+            <%= link_to edit_node_path(@node), class: "action_button" do %>
+              <%= icon("edit", library: "tabler", "aria-hidden": true) %>
+              <%= @node.autosave ? "Continue Editing" : (@node.draft ? "Edit Draft" : "Lock + Edit") %>
+            <% end %>
             <% if !@node.draft && !@node.autosave %>
               <span class="field_hint">Nothing pending — this will start a fresh draft.</span>
             <% end %>
@@ -51,10 +54,12 @@
           <% end %>
           <% if @node.autosave || (@node.draft && @node.head) %>
             <div class="node_info_item">
-              <%= button_to (@node.draft && !@node.autosave ? 'Destroy Draft' : 'Discard Autosave'),
-                    revert_node_path(@node), method: :put,
-                    params: { return_to: request.path },
-                    form: { data: { confirm: "This cannot be undone. Continue?" }, class: 'button_to destructive' } %>
+            <%= button_to revert_node_path(@node), method: :put,
+                                params: { return_to: request.path },
+                                form: { data: { confirm: "This cannot be undone. Continue?" }, class: 'button_to destructive' } do %>
+              <%= icon("trash", library: "tabler", "aria-hidden": true) %>
+              <%= @node.draft && !@node.autosave ? "Destroy Draft" : "Discard Autosave" %>
+            <% end %>
             </div>
           <% end %>
         <% end %>