+ Add some new concepts to DEVELOPMENT.md

+ Add icon

src/css/scanner.css

@@ -0,0 +1,78 @@
+#preview {
+    position: absolute;
+    z-index: -1;
+    top: 0;
+    left: 150%;
+    height: 100%;
+    width: 100%;
+    object-fit: cover;
+}
+
+#wait {
+    position: absolute;
+    left: 150%;
+    top: 10%;
+    width: 100%;
+    z-index: -2;
+    margin-top: 20%;
+}
+#wait h1 {
+    text-align: center;
+}
+
+#scanned {
+    position: absolute;
+    bottom: -500px;
+    width: 100%;
+    height: 100%;
+    z-index: -5;
+    opacity: 0;
+    padding-left: 20px;
+    backdrop-filter: blur(20px);
+    background: linear-gradient(0deg, rgba(0,0,0,.75) 80%, rgba(94,94,94,.75) 100%);
+    box-shadow: 0px -10px 34px -10px rgba(0,0,0,0.75);
+}
+
+#password {
+    font-family: 'Consolas';
+    font-weight: 200;
+}
+
+/* Error */
+#error {
+    position: absolute;
+    display: flex;
+    bottom: -350px;
+    width: auto;
+    height: 55px;
+    padding-left: 10px;
+    padding-right: 20px;
+    backdrop-filter: blur(30px);
+    background-color: rgba(100, 0, 0, 0.6);
+    border-radius: 15px;
+}
+#error i {
+    font-size: 20pt;
+    padding: 14px;
+    color: rgb(255, 139, 139);
+}
+#error p {
+    padding-bottom: 20px;
+}
+
+.show {
+    animation: showpass 1s;
+    opacity: 1 !important;
+    display: block !important;
+}
+
+@keyframes showpass {
+    from {
+        opacity: 0 !important;
+        display: none;
+    }
+    to {
+        opacity: 1 !important;
+        display: block !important;
+    }
+}