0.10.1: Archify Sync in the status bar, server address as a setting

In workspaces with Archify files, Archify Sync sits in the status bar and
opens a menu: sign in, share, join, server address, settings. The new
archify.sync.server setting (empty by default) is used without asking,
and in workspace settings gives a project one server.
archify.sync.statusBar hides the entry.

test/integration/suite.ts

@@ -489,7 +489,11 @@ export async function run(): Promise<void> {
 
   await check('without a shared model, sync stays unloaded and its commands are there', async () => {
     const commands = await vscode.commands.getCommands(true);
-    for (const id of ['archify.sync.signIn', 'archify.sync.share', 'archify.sync.join']) assert.ok(commands.includes(id), `${id} is registered`);
+    for (const id of ['archify.sync.signIn', 'archify.sync.share', 'archify.sync.join', 'archify.sync.menu', 'archify.sync.setServer']) assert.ok(commands.includes(id), `${id} is registered`);
+    // No server of anyone's built in: empty until the user sets one.
+    const config = vscode.workspace.getConfiguration('archify.sync');
+    assert.equal(config.get('server'), '');
+    assert.equal(config.get('statusBar'), true);
     // The extension host's module cache: dist/sync.js (Yjs, the WebSocket) is not loaded.
     const loaded = Object.keys(require.cache).filter((file) => file.endsWith(`${path.sep}dist${path.sep}sync.js`));
     assert.deepEqual(loaded, [], 'the sync bundle is not loaded');