Clean up falafel theme, move some parts to root template path

tailbone/templates/grids/buefy.mako

@@ -49,7 +49,7 @@
       <div class="filters">
         % if grid.filterable:
             ## TODO: stop using |n filter
-            ${grid.render_filters(allow_save_defaults=allow_save_defaults)|n}
+            ${grid.render_filters(template='/grids/filters_buefy.mako', allow_save_defaults=allow_save_defaults)|n}
         % endif
       </div>
     </div>

tailbone/templates/grids/filters_buefy.mako

@@ -0,0 +1,57 @@
+## -*- coding: utf-8; -*-
+
+<form action="${form.action_url}" method="GET" v-on:submit.prevent="applyFilters()">
+
+  <grid-filter v-for="key in filtersSequence"
+               :key="key"
+               :filter="filters[key]"
+               ref="gridFilters">
+  </grid-filter>
+
+  <b-field grouped>
+
+    <b-button type="is-primary"
+              native-type="submit"
+              icon-pack="fas"
+              icon-left="check"
+              class="control">
+      Apply Filters
+    </b-button>
+
+    <b-select @input="addFilter"
+              placeholder="Add Filter"
+              v-model="selectedFilter">
+      <option v-for="key in filtersSequence"
+              :key="key"
+              :value="key"
+              :disabled="filters[key].visible">
+        {{ filters[key].label }}
+      </option>
+    </b-select>
+
+    <b-button @click="resetView()"
+              icon-pack="fas"
+              icon-left="home"
+              class="control">
+      Default View
+    </b-button>
+
+    <b-button @click="clearFilters()"
+              icon-pack="fas"
+              icon-left="trash"
+              class="control">
+      No Filters
+    </b-button>
+
+    % if allow_save_defaults and request.user:
+        <b-button @click="saveDefaults()"
+                  icon-pack="fas"
+                  icon-left="save"
+                  class="control">
+          Save Defaults
+        </b-button>
+    % endif
+
+  </b-field>
+
+</form>