feat: Add support for registering accounts with the web UI

src/web/pages/resources/common.css

@@ -108,6 +108,11 @@ em {
     }
 }
 
+hr {
+    border-width: 1px;
+    border-color: var(--secondary);
+}
+
 small {
     color: var(--secondary);
 }
@@ -223,6 +228,7 @@ input {
 input[type="checkbox"] {
     display: inline;
     margin: 0;
+    width: auto !important;
 }
 
 button, a.button {

src/web/pages/resources/login.css

@@ -1,5 +1,62 @@
-.reset-password {
+.centered-links {
     display: flex;
-    width: 100%;
-    justify-content: right;
+    justify-content: space-between;
+
+    :last-child {
+        margin-left: auto;
+    }
+}
+
+.text-rule {
+    display: flex;
+    align-items: center;
+    text-align: center;
+    color: var(--secondary);
+    margin-bottom: 0.5em;
+}
+
+.text-rule::before, .text-rule::after {
+  content: '';
+  flex: 1;
+  border-bottom: 1px solid var(--secondary);
+}
+
+.text-rule:not(:empty)::before {
+  margin-right: 1rem;
+}
+
+.text-rule:not(:empty)::after {
+  margin-left: 1rem;
+}
+
+.username-input {
+    display: flex;
+    padding: 0.5em;
+    margin-bottom: 0.5em;
+    line-height: 1;
+
+    border-radius: var(--border-radius-sm);
+    border: 2px solid var(--secondary);
+
+    &:has(input:focus-visible) {
+        outline: 2px solid var(--c1);
+        border-color: transparent;
+    }
+
+    input {
+        flex: 1;
+        padding: 0;
+        margin: 0;
+        border: none;
+        outline: none;
+    }
+
+    span {
+        flex: 0;
+        color: var(--secondary);
+
+        &:first-of-type {
+            margin-inline-end: 0.5em;
+        }
+    }
 }