update gdb dashboard config

gdb/.gdbinit.d/gdbdashbard.conf

@@ -1,7 +1,9 @@
 # auto generated by GDB dashboard
 
-dashboard -layout !assembly !registers stack memory source expressions !history !threads
+dashboard -layout stack breakpoints memory source expressions
 dashboard -style syntax_highlighting 'rrt'
 dashboard -style style_low '0;37'
-dashboard source -style context 15
+dashboard -style compact_values False
+dashboard -style max_value_length 0
+dashboard source -style height 20
 dashboard stack -style arguments False