Add Erlang LS default configuration

erlang_ls.config

@@ -0,0 +1,32 @@
+otp_path: "/usr/lib/erlang"
+plt_path: "_build/default/rebar3_24.3.3_plt"
+#code_reload:
+#  node: ejabberd@localhost
+apps_dirs:
+  - "_build/default/lib/*"
+deps_dirs:
+  - "_build/default/lib/*"
+include_dirs:
+  - "_build/default/lib"
+  - "_build/default/lib/*/include"
+  - "include"
+macros:
+  - name: DEPRECATED_GET_STACKTRACE
+  - name: HAVE_ERL_ERROR
+  - name: HAVE_URI_STRING
+  - name: OTP_BELOW_25
+  - name: SIP
+  - name: STUN
+diagnostics:
+#  enabled:
+#    - crossref
+  disabled:
+#    - dialyzer
+    - unused_includes # Otherwise it complains about unused logger.hrl
+lenses:
+  disabled:
+    - ct-run-test
+    - function-references
+    - server-info
+    - show-behaviour-usages
+    - suggest-spec