* repeater and room server build_src_filter fixes

variants/xiao_c3/platformio.ini

@@ -22,7 +22,7 @@ build_src_filter = ${esp32_base.build_src_filter}
 [env:Xiao_C3_Repeater_sx1262]
 extends = Xiao_esp32_C3
 build_src_filter = ${Xiao_esp32_C3.build_src_filter}
-  +<../examples/simple_repeater/main.cpp>
+  +<../examples/simple_repeater/*.cpp>
 build_flags =
   ${Xiao_esp32_C3.build_flags}
   -D RADIO_CLASS=CustomSX1262