[M116] inputs: enabled AlwaysConfirmComposition by default

This CL requires crrev/c/4624233 to be landed first. Original attempt to
land can be seen here crrev/c/4574248. Once crrev/c/4624233 has landed
the Crostini issue caused by this flag will be resolved.

BUG=b:265853952

(cherry picked from commit 06cda3c)

Change-Id: I95303dde9d3a155b17ceb46093acb1303b8ef033
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4623959
Reviewed-by: ccameron chromium <ccameron@chromium.org>
Reviewed-by: Dana Fried <dfried@chromium.org>
Commit-Queue: Curtis McMullan <curtismcmullan@chromium.org>
Cr-Original-Commit-Position: refs/heads/main@{#1160440}
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4653419
Auto-Submit: Darren Shen <shend@chromium.org>
Commit-Queue: Dana Fried <dfried@chromium.org>
Cr-Commit-Position: refs/branch-heads/5845@{#199}
Cr-Branched-From: 5a5dff6-refs/heads/main@{#1160321}

ui/base/ui_base_features.cc

@@ -110,7 +110,7 @@ BASE_FEATURE(kLacrosResourcesFileSharing,
 // Enabling this fixes b/265853952.
 BASE_FEATURE(kAlwaysConfirmComposition,
              "AlwaysConfirmComposition",
-             base::FEATURE_DISABLED_BY_DEFAULT);
+             base::FEATURE_ENABLED_BY_DEFAULT);
 #endif  // BUILDFLAG(IS_CHROMEOS_ASH)
 
 // Update of the virtual keyboard settings UI as described in