build: Add ci profile that uses --release

As we add more rust crates in performance-critical places,
we run into some performance issues with debug builds.
This makes it hard to get a good feel for the performance
of the application, as something may be slow simply because
it's not been optimized by the compiler.

This commit adds a ci profile to our meson options,
and adjusts our CI configuration to use it. Regular
builds should continue to use the development profile.

Also renames `default` to `release`

meson_options.txt

@@ -1,9 +1,11 @@
 option(
   'profile',
   type: 'combo',
+  description: 'The build profiles for the application. Use development or ci for the .Devel app ID. ci also produces optimized bundles.',
   choices: [
-    'default',
-    'development'
+    'release',
+    'development',
+    'ci',
   ],
-  value: 'default'
+  value: 'release'
 )