Add simple server picker mode with version bump

src/web/styles.css

@@ -2706,6 +2706,26 @@ p {
   margin-bottom: 14px;
 }
 
+.client-server-mode-toggle {
+  min-height: 32px;
+  display: block;
+  margin: 0 auto 8px;
+  padding: 5px 8px;
+  border: 0;
+  background: transparent;
+  color: var(--client-muted);
+  font: 700 9px/1.2 'JetBrains Mono', 'SF Mono', ui-monospace, Menlo, monospace;
+  cursor: pointer;
+}
+
+.client-server-mode-toggle:hover {
+  color: var(--client-accent);
+}
+
+.client-server-scroll > .client-server-mode-toggle {
+  margin-top: 8px;
+}
+
 .client-server-tools input {
   width: 100%;
   height: 36px;
@@ -2874,6 +2894,7 @@ p {
 }
 
 .client-server-filters button:focus-visible,
+.client-server-mode-toggle:focus-visible,
 .client-server-group-toggle:focus-visible,
 .client-server-more:focus-visible,
 .client-server-auto:focus-visible,
@@ -3280,6 +3301,7 @@ p {
   }
 
   .client-server-filters button,
+  .client-server-mode-toggle,
   .client-server-group-toggle,
   .client-server-more,
   .client-server-favorite {
@@ -3375,6 +3397,7 @@ p {
   .client-usage > strong,
   .client-server,
   .client-server-auto,
+  .client-server-mode-toggle,
   .client-server-favorite,
   .client-server-group-toggle,
   .client-server-more,