feat: Add support for minutes in auto resolve feature (#11269)

### Summary

- Converts conversation auto-resolution duration from days to minutes
for more
granular control
- Updates validation to allow values from 10 minutes (minimum) to 999
days (maximum)
- Implements smart messaging to show appropriate time units in activity
messages

###  Changes

- Created migration to convert existing durations from days to minutes
(x1440)
- Updated conversation resolver to use minutes instead of days
- Added dynamic translation key selection based on duration value
- Updated related specs and documentation
- Added support for displaying durations in days, hours, or minutes
based on value

###  Test plan

- Verify account validation accepts new minute-based ranges
- Confirm existing account settings are correctly migrated
- Test auto-resolution works properly with minute values
- Ensure proper time unit display in activity messages

---------

Co-authored-by: Sivin Varghese <64252451+iamsivin@users.noreply.github.com>

app/javascript/dashboard/i18n/locale/en/components.json

@@ -43,5 +43,11 @@
   "FEATURE_SPOTLIGHT": {
     "LEARN_MORE": "Learn more",
     "WATCH_VIDEO": "Watch video"
+  },
+  "DURATION_INPUT": {
+    "MINUTES": "Minutes",
+    "HOURS": "Hours",
+    "DAYS": "Days",
+    "PLACEHOLDER": "Enter duration"
   }
 }