added privacy policy page and about section, improved dir check, fixed crash when idexer is disabled

templates/text.html

@@ -43,7 +43,7 @@
                     <option value="{{.Code}}" {{if eq .Code $.CurrentLang}}selected{{end}}>{{.Name}}</option>
                     {{end}}
                 </select>  
-                <!-- <button id="settingsButton" onclick="window.location.href='/about'">About QGato</button> -->
+                <button id="aboutQGatoBtn">About QGato</button>
             </div>
         </div>
     </div>
@@ -53,6 +53,27 @@
         </div>
     </noscript>
 
+    <!-- Popup Modal for QGato -->
+    <div id="aboutQGatoModal">
+        <!-- Close Button -->
+        <button class="btn-nostyle" id="close-button">
+            <div class="material-icons-round icon_visibility clickable cloase-btn">&#xe5cd;</div>
+        </button>
+
+        <div class="modal-content">
+            <img 
+                src="/static/images/icon.svg" 
+                alt="QGato"
+            >
+            <h2>QGato</h2>
+            <p>A open-source private search engine.</p>
+            <div class="button-container">
+                <button onclick="window.location.href='https://weforge.xyz/Spitfire/Search'">Source Code</button>
+                <button onclick="window.location.href='/privacy'">Privacy policy</button>
+            </div>
+        </div>
+    </div>
+
     <form action="/search" id="prev-next-form" class="results-search-container" method="GET" autocomplete="off">
         <h1 class="logomobile">
             <div class="logo-container" href="/">