feat: add support to TOML config file Tauri.toml, closes #4806

[lucasfernog]

What kind of change does this PR introduce?

• Bugfix
• Feature
• Docs
• New Binding issue #___
• Code style update
• Refactor
• Build-related changes
• Other, please describe:

Does this PR introduce a breaking change?

• Yes, and the changes were approved in issue #___
• No

Checklist

• When resolving issues, they are referenced in the PR's title (e.g fix: remove a typo, closes #___, #___)
• A change file is added if any packages will require a version bump due to this PR per the instructions in the readme.
• I have added a convincing reason for adding this feature, if necessary

Other information

Example config file (inspired by the API example config):

[build]
distDir = "../dist"
devPath = "../dist"

[tauri]
macOSPrivateApi = true

[tauri.pattern]
use = "isolation"
[tauri.pattern.options]
dir = "../isolation-dist"

[tauri.bundle]
identifier = "com.tauri.api"
icon = [
  "../../.icons/32x32.png",
  "../../.icons/128x128.png",
  "../../.icons/128x128@2x.png",
  "../../.icons/icon.icns",
  "../../.icons/icon.ico"
]

[tauri.cli]
description = "Tauri API"
args = []

[tauri.updater]
active = true
pubkey = "dW50cnVzdGVkIGNvbW1lbnQ6IG1pbmlzaWduIHB1YmxpYyBrZXk6IDE5QzMxNjYwNTM5OEUwNTgKUldSWTRKaFRZQmJER1h4d1ZMYVA3dnluSjdpN2RmMldJR09hUFFlZDY0SlFqckkvRUJhZDJVZXAK"

[tauri.allowlist]
all = true

[tauri.systemTray]
iconPath = "../../.icons/tray_icon_with_transparency.png"

[lucasfernog]

Added kebab-case aliases:

[build]
dist-dir = "../dist"
dev-path = "../dist"

[tauri]
macos-private-api = true

[tauri.pattern]
use = "isolation"
[tauri.pattern.options]
dir = "../isolation-dist"

[tauri.bundle]
identifier = "com.tauri.api"
icon = [
  "../../.icons/32x32.png",
  "../../.icons/128x128.png",
  "../../.icons/128x128@2x.png",
  "../../.icons/icon.icns",
  "../../.icons/icon.ico"
]

[tauri.cli]
description = "Tauri API"
args = []

[tauri.updater]
active = true
pubkey = "dW50cnVzdGVkIGNvbW1lbnQ6IG1pbmlzaWduIHB1YmxpYyBrZXk6IDE5QzMxNjYwNTM5OEUwNTgKUldSWTRKaFRZQmJER1h4d1ZMYVA3dnluSjdpN2RmMldJR09hUFFlZDY0SlFqckkvRUJhZDJVZXAK"

[tauri.allowlist]
all = true

[tauri.system-tray]
icon-path = "../../.icons/tray_icon_with_transparency.png"