Try to extract config when using multiple servers (#1011)

CHANGELOG.md

@@ -5,6 +5,14 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [Unreleased]
+
+### Fixed
+
+- When `workspace/didChangeConfiguration` contains the configuration of multiple LSP servers, `texlab` will try
+  to extract the `texlab` configuration instead of falling back to the default settings
+  ([#1003](https://github.com/latex-lsp/texlab/issues/1003))
+
 ## [5.12.3] - 2024-01-27
 
 ### Fixed

crates/texlab/src/client.rs

@@ -93,8 +93,14 @@ impl LspClient {
         Ok(())
     }
 
-    pub fn parse_options(&self, value: serde_json::Value) -> Result<Options> {
-        let options = match serde_json::from_value(value) {
+    pub fn parse_options(&self, mut value: serde_json::Value) -> Result<Options> {
+        // if there are multiple servers, we need to extract the options for texlab first
+        let options = match value.get_mut("texlab") {
+            Some(section) => section.take(),
+            None => value,
+        };
+
+        let options = match serde_json::from_value(options) {
             Ok(new_options) => new_options,
             Err(why) => {
                 let message = format!(