refactor: use onToast remove react-hot-toast dep (#226)

### TL;DR

Removed the dependency on `react-hot-toast` in favor of a custom implementation for toast notifications.

### What changed?

1. Removed `react-hot-toast` from `package.json` and `yarn.lock`. 
2. Updated `EnvironmentVariables` and `Config` to use the custom toast notification system.

### Why make this change?

To reduce bundle size and have more control over the toast notification system.

### How to test?

1. Navigate to the Environment Variables settings for a project. Try adding and removing environment variables to see the new toast notifications in action.
2. Navigate to the Domains settings for a project and try adding a new domain to view the custom toast notifications.

---

packages/frontend/package.json

@@ -62,7 +62,6 @@
     "react-dom": "^18.2.0",
     "react-dropdown": "^1.11.0",
     "react-hook-form": "^7.49.0",
-    "react-hot-toast": "^2.4.1",
     "react-oauth-popup": "^1.0.5",
     "react-router-dom": "^6.20.1",
     "react-timer-hook": "^3.0.7",

packages/frontend/src/pages/org-slug/projects/id/settings/EnvironmentVariables.tsx

@@ -1,14 +1,12 @@
 import { useCallback, useEffect, useMemo, useState } from 'react';
 import { useFieldArray, useForm } from 'react-hook-form';
-import toast from 'react-hot-toast';
 import { useParams } from 'react-router-dom';
-import { Environment, EnvironmentVariable } from 'gql-client';
 
 import { Collapse } from '@snowballtools/material-tailwind-react-fork';
 
 import AddEnvironmentVariableRow from 'components/projects/project/settings/AddEnvironmentVariableRow';
 import DisplayEnvironmentVariables from 'components/projects/project/settings/DisplayEnvironmentVariables';
-import { useGQLClient } from '../../../../../context/GQLClientContext';
+import { useGQLClient } from 'context/GQLClientContext';
 import { EnvironmentVariablesFormValues } from '../../../../../types';
 import HorizontalLine from 'components/HorizontalLine';
 import { Heading } from 'components/shared/Heading';
@@ -17,10 +15,13 @@ import { Checkbox } from 'components/shared/Checkbox';
 import { PlusIcon } from 'components/shared/CustomIcon';
 import { InlineNotification } from 'components/shared/InlineNotification';
 import { ProjectSettingContainer } from 'components/projects/project/settings/ProjectSettingContainer';
+import { useToast } from 'components/shared/Toast';
+import { Environment, EnvironmentVariable } from 'gql-client';
 
 export const EnvironmentVariablesTabPanel = () => {
   const { id } = useParams();
   const client = useGQLClient();
+  const { toast, dismiss } = useToast();
 
   const [environmentVariables, setEnvironmentVariables] = useState<
     EnvironmentVariable[]
@@ -118,13 +119,25 @@ export const EnvironmentVariablesTabPanel = () => {
 
         fetchEnvironmentVariables(id);
 
-        toast.success(
-          createFormData.variables.length > 1
-            ? `${createFormData.variables.length} variables added`
-            : `Variable added`,
-        );
+        toast({
+          id:
+            createFormData.variables.length > 1
+              ? 'env_variable_added'
+              : 'env_variables_added',
+          title:
+            createFormData.variables.length > 1
+              ? `${createFormData.variables.length} variables added`
+              : `Variable added`,
+          variant: 'success',
+          onDismiss: dismiss,
+        });
       } else {
-        toast.error('Environment variables not added');
+        toast({
+          id: 'env_variables_not_added',
+          title: 'Environment variables not added',
+          variant: 'error',
+          onDismiss: dismiss,
+        });
       }
     },
     [id, client],

packages/frontend/src/pages/org-slug/projects/id/settings/domains/add/Config.tsx

@@ -1,12 +1,12 @@
-import toast from 'react-hot-toast';
 import { useNavigate, useParams, useSearchParams } from 'react-router-dom';
 
-import { useGQLClient } from '../../../../../../../context/GQLClientContext';
+import { useGQLClient } from 'context/GQLClientContext';
 import { Table } from 'components/shared/Table';
 import { Button } from 'components/shared/Button';
 import { InlineNotification } from 'components/shared/InlineNotification';
 import { ArrowRightCircleIcon } from 'components/shared/CustomIcon';
 import { ProjectSettingContainer } from 'components/projects/project/settings/ProjectSettingContainer';
+import { useToast } from 'components/shared/Toast';
 
 const Config = () => {
   const { id, orgSlug } = useParams();
@@ -14,15 +14,26 @@ const Config = () => {
   const navigate = useNavigate();
   const [searchParams] = useSearchParams();
   const primaryDomainName = searchParams.get('name');
+  const { toast, dismiss } = useToast();
 
   const handleSubmitDomain = async () => {
     if (primaryDomainName === null) {
-      toast.error('Cannot resolve domain name');
+      toast({
+        id: 'unresolvable_domain_name',
+        title: 'Cannot resolve domain name',
+        variant: 'error',
+        onDismiss: dismiss,
+      });
       return;
     }
 
     if (id === undefined) {
-      toast.error('Cannot find project');
+      toast({
+        id: 'domain_cannot_find_project',
+        title: 'Cannot find project',
+        variant: 'error',
+        onDismiss: dismiss,
+      });
       return;
     }
 
@@ -31,10 +42,20 @@ const Config = () => {
     });
 
     if (isAdded) {
-      toast.success('Domain added successfully');
+      toast({
+        id: 'domain_added_successfully',
+        title: 'Domain added successfully',
+        variant: 'success',
+        onDismiss: dismiss,
+      });
       navigate(`/${orgSlug}/projects/${id}/settings/domains`);
     } else {
-      toast.error('Error adding domain');
+      toast({
+        id: 'generic_error_adding_domain',
+        title: 'Error adding domaint',
+        variant: 'error',
+        onDismiss: dismiss,
+      });
     }
   };