feat: Eslint rules (#9839)

# Pull Request Template

## Description

This PR adds new eslint rules to the code base.

**Error rules**

|    Rule name     | Type | Files updated |
| ----------------- | --- | - |
| `vue/block-order`  | error  |  ✅  |
| `vue/component-name-in-template-casing`  | error  |  ✅  |
| `vue/component-options-name-casing`  | error  |  ✅  |
| `vue/custom-event-name-casing`  | error  |  ✅  |
| `vue/define-emits-declaration`  | error  |  ✅  |
| `vue/no-unused-properties`  | error  |  ✅  |
| `vue/define-macros-order`  | error  |  ✅  |
| `vue/define-props-declaration`  | error  |  ✅  |
| `vue/match-component-import-name`  | error  |  ✅  |
| `vue/next-tick-style`  | error  |  ✅  |
| `vue/no-bare-strings-in-template`  | error  |  ✅  |
| `vue/no-empty-component-block`  | error  |  ✅  |
| `vue/no-multiple-objects-in-class`  | error  |  ✅  |
| `vue/no-required-prop-with-default`  | error  |  ✅  |
| `vue/no-static-inline-styles`  | error  |  ✅  |
| `vue/no-template-target-blank`  | error  |  ✅  |
| `vue/no-this-in-before-route-enter`  | error  |  ✅  |
| `vue/no-undef-components`  | error  |  ✅  |
| `vue/no-unused-emit-declarations`  | error  |  ✅  |
| `vue/no-unused-refs`  | error  |  ✅  |
| `vue/no-use-v-else-with-v-for`  | error  |  ✅  |
| `vue/no-useless-v-bind`  | error  |  ✅  |
| `vue/no-v-text`  | error  |  ✅  |
| `vue/padding-line-between-blocks`  | error  |  ✅  |
| ~`vue/prefer-prop-type-boolean-first`~ | ~error~ | ❌ (removed this
rule, cause a bug in displaying custom attributes) |
| `vue/prefer-separate-static-class`  | error  |  ✅  |
| `vue/prefer-true-attribute-shorthand`  | error  |  ✅  |
| `vue/require-explicit-slots`  | error  |  ✅  |
| `vue/require-macro-variable-name`  | error  |  ✅  |


**Warn rules**

|    Rule name     | Type | Files updated |
| ---- | ------------- | ------------- |
| `vue/no-root-v-if`  | warn  |  ❎  |


Fixes https://linear.app/chatwoot/issue/CW-3492/vue-eslint-rules

## Type of change

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


## 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

---------

Co-authored-by: Fayaz Ahmed <fayazara@gmail.com>
Co-authored-by: Muhsin Keloth <muhsinkeramam@gmail.com>
Co-authored-by: Shivam Mishra <scm.mymail@gmail.com>
Co-authored-by: Pranav <pranav@chatwoot.com>

app/javascript/widget/components/ChatFooter.vue

@@ -1,45 +1,3 @@
-<template>
-  <footer
-    v-if="!hideReplyBox"
-    class="relative z-50 mb-1"
-    :class="{
-      'rounded-lg': !isWidgetStyleFlat,
-      'pt-2.5 shadow-[0px_-20px_20px_1px_rgba(0,_0,_0,_0.05)] dark:shadow-[0px_-20px_20px_1px_rgba(0,_0,_0,_0.15)] rounded-t-none':
-        hasReplyTo,
-    }"
-  >
-    <footer-reply-to
-      v-if="hasReplyTo"
-      :in-reply-to="inReplyTo"
-      @dismiss="inReplyTo = null"
-    />
-    <chat-input-wrap
-      class="shadow-sm"
-      :on-send-message="handleSendMessage"
-      :on-send-attachment="handleSendAttachment"
-    />
-  </footer>
-  <div v-else>
-    <custom-button
-      class="font-medium"
-      block
-      :bg-color="widgetColor"
-      :text-color="textColor"
-      @click="startNewConversation"
-    >
-      {{ $t('START_NEW_CONVERSATION') }}
-    </custom-button>
-    <custom-button
-      v-if="showEmailTranscriptButton"
-      type="clear"
-      class="font-normal"
-      @click="sendTranscript"
-    >
-      {{ $t('EMAIL_TRANSCRIPT.BUTTON_TEXT') }}
-    </custom-button>
-  </div>
-</template>
-
 <script>
 import { mapActions, mapGetters } from 'vuex';
 import { getContrastingTextColor } from '@chatwoot/utils';
@@ -59,12 +17,6 @@ export default {
     FooterReplyTo,
   },
   mixins: [routerMixin],
-  props: {
-    msg: {
-      type: String,
-      default: '',
-    },
-  },
   data() {
     return {
       inReplyTo: null,
@@ -161,6 +113,49 @@ export default {
   },
 };
 </script>
+
+<template>
+  <footer
+    v-if="!hideReplyBox"
+    class="relative z-50 mb-1"
+    :class="{
+      'rounded-lg': !isWidgetStyleFlat,
+      'pt-2.5 shadow-[0px_-20px_20px_1px_rgba(0,_0,_0,_0.05)] dark:shadow-[0px_-20px_20px_1px_rgba(0,_0,_0,_0.15)] rounded-t-none':
+        hasReplyTo,
+    }"
+  >
+    <FooterReplyTo
+      v-if="hasReplyTo"
+      :in-reply-to="inReplyTo"
+      @dismiss="inReplyTo = null"
+    />
+    <ChatInputWrap
+      class="shadow-sm"
+      :on-send-message="handleSendMessage"
+      :on-send-attachment="handleSendAttachment"
+    />
+  </footer>
+  <div v-else>
+    <CustomButton
+      class="font-medium"
+      block
+      :bg-color="widgetColor"
+      :text-color="textColor"
+      @click="startNewConversation"
+    >
+      {{ $t('START_NEW_CONVERSATION') }}
+    </CustomButton>
+    <CustomButton
+      v-if="showEmailTranscriptButton"
+      type="clear"
+      class="font-normal"
+      @click="sendTranscript"
+    >
+      {{ $t('EMAIL_TRANSCRIPT.BUTTON_TEXT') }}
+    </CustomButton>
+  </div>
+</template>
+
 <style scoped lang="scss">
 @import '~widget/assets/scss/variables.scss';