Add basic tables and graphs for various tables.

Add basic tables and graphs for viewing things like uploads over time, new users
over time, comments over time, etc. Located at https://betabooru.donmai.us/reports.

The graphing uses Apache ECharts: https://echarts.apache.org/en/index.html.

app/components/time_series_component.rb

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+# frozen_string_literal: true
+
+class TimeSeriesComponent < ApplicationComponent
+  delegate :current_page_path, :search_params, to: :helpers
+
+  attr_reader :results, :columns, :mode
+
+  def initialize(results, columns, mode: :table)
+    @results = results
+    @columns = columns
+    @mode = mode.to_sym
+  end
+end

app/components/time_series_component/time_series_component.html.erb

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+<div class="flex justify-end text-xs mb-2">
+  <% if mode == :table %>
+    <%= link_to "Chart", current_page_path(search: { **search_params, mode: "chart" }) %>
+  <% else %>
+    <%= link_to "Table", current_page_path(search: { **search_params, mode: "table" }) %>
+  <% end %>
+</div>
+
+<% if mode == :table %>
+  <table class="striped autofit" width="100%">
+    <thead>
+      <th>Date</th>
+
+      <% columns.each do |column| %>
+        <%= tag.th(column.to_s.capitalize, class: ("col-expand" if column == columns.last)) %>
+      <% end %>
+    </thead>
+
+    <tbody>
+      <% results.each do |row| %>
+        <tr>
+          <td><%= row["date"].to_date %></td>
+
+          <% columns.each do |column| %>
+            <td><%= row[column.to_s] %></td>
+          <% end %>
+        <tr>
+      <% end %>
+    </tbody>
+  </table>
+<% elsif mode == :chart %>
+  <div class="line-chart" style="width: 100%; height: 80vh;"></div>
+
+  <script type="text/javascript">
+    var data = <%= raw results.to_a.to_json %>;
+    var columns = <%= raw columns.to_json %>;
+    var chart = new Danbooru.TimeSeriesComponent({
+      container: $(".line-chart").get(0),
+      data: data,
+      columns: columns,
+    });
+  </script>
+<% end %>

app/components/time_series_component/time_series_component.js

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+../../javascript/src/javascripts/time_series_component.js