Add new settings templates for hotkeys, title query, and URL formatting

- Create hotkeys.html template with SearXNG and Vim-like hotkey options
- Add title_query.html template for toggling query display in page title
- Implement url_formatting.html template with URL display format selection
- Include descriptive labels and help text for each setting

searx/templates/smart/madules/settings/hotkeys.html

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+<fieldset>
+  <div class="container">
+    <legend id="pref_hotkeys">{{- _('Hotkeys') -}}</legend>
+      <select name="hotkeys" aria-labelledby="pref_hotkeys" aria-describedby="desc_hotkeys">
+        <option value="default"
+              {%- if hotkeys == 'default' %} selected="selected"
+              {%- endif -%}>
+              SearXNG
+        </option>
+        <option value="vim"
+                {%- if hotkeys == 'vim' %} selected="selected"
+                {%- endif -%}>
+                {{- _('Vim-like') -}}
+          </option>
+      </select>
+  </div>
+  <div class="description" id="desc_url_formatting">
+    {{- _(
+      'Navigate search results with hotkeys (JavaScript required). '
+      'Press "h" key on main or result page to get help.'
+      ) -}}
+  </div>
+</fieldset>

searx/templates/smart/madules/settings/title_query.html

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+<fieldset>
+    <div class="container">
+        <legend id="pref_query_in_title">
+            {{ _("Query in the page's title") }}
+        </legend>
+        <input type="checkbox" name="query_in_title"
+        aria-labelledby="pref_query_in_title"
+        aria-describedby="desc_query_in_title" class="switch" {%- if
+        preferences.get_value('query_in_title') -%} checked {%- endif -%} >
+    </div>
+    <div class="description" id="desc_query_in_title">
+        {{- _("When enabled, the result page's title contains your query. Your
+        browser can record this title") -}}
+    </div>
+</fieldset>

searx/templates/smart/madules/settings/url_formatting.html

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+<fieldset>
+  <div class="container">
+    <legend id="pref_url_formatting">{{- _('URL formatting') -}}</legend>
+      <select  name="url_formatting" aria-labelledby="pref_url_formatting" aria-describedby="desc_url_formatting">
+        <option value="pretty"
+        {%- if preferences.get_value('url_formatting') == 'pretty' %} selected="selected"
+        {%- endif -%}>
+        {{- _('Pretty') -}}
+        </option>
+        <option value="full"
+                {%- if preferences.get_value('url_formatting') == 'full' %} selected="selected"
+                {%- endif -%}>
+                {{- _('Full') -}}
+        </option>
+        <option value="host"
+                {%- if preferences.get_value('url_formatting') == 'host' %} selected="selected"
+                {%- endif -%}>
+                {{- _('Host') -}}
+        </option>
+      </select>
+  </div>
+  <div class="description" id="desc_url_formatting">
+    {{- _('Change result URL formatting') -}}
+  </div>
+</fieldset>