Incorrect Filtering of Subscription-Generated Groups and Non-Subscription Outbounds in `extra_groups` Configuration

[Delay7184]

Problem Description

When using extra_groups in templates:

1. Subscription-generated groups ignore the filter, causing them to be added to every non-subscription type group.
2. Outbounds other than subscriptions are not filtered.

Steps to Reproduce

1. Configure outbounds:

"outbounds": [
  {
    "type": "shadowsocks",
    "tag": "香港 自建"
  }
],
"subscriptions": [
  {
    "name": "sub",
    "url": "suburl",
    "generate_selector": true
  }
]

2. Configure extra_groups as follows:

"extra_groups": [
  {
    "tag": "Hong Kong",
    "type": "selector",
    "filter": "(?i)🇭🇰|香港|hk"
  }
]

3. The generated configuration is:

{
  "type": "selector",
  "tag": "Hong Kong",
  "outbounds": [
    "sub",
    "香港 01",
    "香港 02"
  ]
}

Expected Behavior

1. The filter in extra_groups should only match outbounds that satisfy the filter condition. Subscription-generated groups should not be added to all selector groups disregarding the filter.
2. The filter in extra_groups should apply to all outbounds, not just subsciptions.

The result should be something like:

{
  "type": "selector",
  "tag": "Hong Kong",
  "outbounds": [
    "香港 01",
    "香港 02",
    "香港 自建"
  ]
}