Reduce duplication in HTML pages with includes. Closes #103

templates/cards/number-of-spots.html

@@ -0,0 +1,13 @@
+<div class="card">
+    <div class="card-body">
+        <h5 class="card-title">Number of Spots</h5>
+        <p class="card-text spothole-card-text">Show up to
+            <select id="spots-to-fetch" class="storeable-select form-select ms-2 me-2 d-inline-block" oninput="filtersUpdated();" style="width: 5em; display: inline-block;">
+            {% for c in web_ui_options["spot-count"] %}
+                <option value="{{c}}" {% if web_ui_options["spot-count-default"] == c %}selected{% end %}>{{c}}</option>
+            {% end %}
+            </select>
+            spots
+        </p>
+    </div>
+</div>