feat: Support bigger font size in dashboard (#10974)

# Pull Request Template

## Description

Fixes
https://linear.app/chatwoot/issue/CW-4091/accessibility-improvement-support-bigger-font-size-for-the-dashboard

## Type of change

- [x] New feature (non-breaking change which adds functionality)

## How Has This Been Tested?

### **Loom video**

https://www.loom.com/share/1ab781859fa748a5ad54aacbacd127b4?sid=a7dd9164-a6de-462f-bff7-1b25e9c55b4f

## Checklist:

- [x] My code follows the style guidelines of this project
- [x] I have performed a self-review of my code
- [x] I have commented on my code, particularly in hard-to-understand
areas
- [ ] I have made corresponding changes to the documentation
- [x] My changes generate no new warnings
- [x] I have added tests that prove my fix is effective or that my
feature works
- [x] New and existing unit tests pass locally with my changes
- [ ] Any dependent changes have been merged and published in downstream
modules

app/javascript/v3/components/Form/Select.vue

@@ -68,7 +68,7 @@ export default {
         'text-ash-900': modelValue,
         'pl-9': icon,
       }"
-      class="block w-full px-3 py-2 pr-6 mb-0 border-0 shadow-sm outline-none appearance-none rounded-xl select-caret ring-ash-200 ring-1 ring-inset placeholder:text-ash-900 focus:ring-2 focus:ring-inset focus:ring-primary-500 sm:text-sm sm:leading-6"
+      class="block w-full px-3 py-2 pr-6 mb-0 border-0 shadow-sm outline-none appearance-none rounded-xl select-caret ring-ash-200 ring-1 ring-inset placeholder:text-ash-900 focus:ring-2 focus:ring-inset focus:ring-primary-500 text-sm leading-6"
       @input="onInput"
     >
       <option value="" disabled selected class="hidden">