ionic doctor check viewport-fit-not-set [ionic-vue]

**Description:**
hello,
i've an issue with ionic doctor check command

ionic doctor check viewport-fit-not-set try to find the index.html in wrong directory
my outputDir is www and doctor try to check the index in src directory

i'am a little bit confused about the use of capacitor.config.json and ionic.config.json
maybe i'm doing wrong

**Steps to Reproduce:**
Run:
```
ionic doctor check viewport-fit-not-set
```

**Output:**
```
Error: ENOENT: no such file or directory, open '/home/user/projects/my-project/src/index.html'
```

**My `ionic info`:**

```
Ionic:

Ionic CLI : 6.12.3 (/home/franckysolo/.npm-global/lib/node_modules/@ionic/cli)
Ionic Framework : @ionic/vue 5.5.2

Capacitor:

Capacitor CLI : 2.4.5
@capacitor/core : 2.4.5

Utility:

cordova-res : not installed
native-run : 1.3.0

System:

NodeJS : v12.20.0 (/usr/bin/node)
npm : 6.14.8
OS : Linux 4.15

```

**Other Information:**

capacitor.config.json

```
{
"appId": "com.my-project.api",
"appName": "my-project",
"bundledWebRuntime": false,
"npmClient": "yarn",
"webDir": "www",
"plugins": {
"SplashScreen": {
"launchShowDuration": 0
}
},
"android": {
"allowMixedContent": true,
"captureInput": true,
"webContentsDebuggingEnabled": true
},
"cordova": {
"plugins": {
"cordova-plugin-streaming-media": {},
"phonegap-plugin-barcodescanner": {}
}
},
"linuxAndroidStudioPath": "/opt/android-studio/bin/studio.sh"
}
```

ionic.config.json

```
{
"name": "traidauto-front",
"integrations": {
"capacitor": {}
},
"type": "vue",
"srcDir": "www", # try this fix but not working
"npmClient": "yarn"
}
```

i 've check the code in ionic cli
the ViewportFitNotSet class get directory from this.project.getSourceDir() which is return src
line 234 in detected methode so maybe is the normal behaviour so how can change the src dir for checking viewport?

Start with the ViewportFitNotSet detection code, especially the referenced line 234 and its use of project.getSourceDir(); compare that behavior with capacitor.config.json and ionic.config.json, including webDir and srcDir. Reproduce the command with the reported www layout, then verify that viewport-fit-not-set checks the intended index.html without the ENOENT error.

Rédigé par le modèle d'indexation à partir du texte de l'issue.