Only show large Khoj favicon on web interface

- Do not want browsers to use the small, grainy favicons
- Firefox for Android does use the bigger icon, when it's the only one available
- Update svg to match the 144x144 ratio just for consistency

src/interface/web/index.html

@@ -3,9 +3,8 @@
         <meta charset="utf-8">
         <title>Khoj</title>
 
-        <link rel="icon" href="data:image/svg+xml,<svg xmlns=%22http://www.w3.org/2000/svg%22 viewBox=%220 0 100 100%22><text y=%22.9em%22 font-size=%2290%22>🦅</text></svg>">
-        <link rel="icon" type="image/png" sizes="32x32" href="/static/assets/icons/favicon-32x32.png">
-        <link rel="icon" type="image/png" sizes="16x16" href="/static/assets/icons/favicon-16x16.png">
+        <link rel="icon" href="data:image/svg+xml,<svg xmlns=%22http://www.w3.org/2000/svg%22 viewBox=%220 0 144 144%22><text y=%22.86em%22 font-size=%22144%22>🦅</text></svg>">
+        <link rel="icon" type="image/png" sizes="144x144" href="/static/assets/icons/favicon-144x144.png">
         <link rel="manifest" href="/static/khoj.webmanifest">
     </head>
     <script type="text/javascript" src="static/assets/org.js"></script>

src/interface/web/khoj.webmanifest

@@ -7,16 +7,6 @@
             "src": "/static/assets/icons/favicon-144x144.png",
             "sizes": "144x144",
             "type": "image/png"
-        },
-        {
-            "src": "/static/assets/icons/favicon-32x32.png",
-            "sizes": "32x32",
-            "type": "image/png"
-        },
-        {
-            "src": "/static/assets/icons/favicon-16x16.png",
-            "sizes": "16x16",
-            "type": "image/png"
         }
     ],
     "theme_color": "#ffffff",