fix: Svelte regex wrong first capturing group (#1003) (#1013)

According to https://github.com/lokalise/i18n-ally/wiki/Custom-Framework `({key})` in regex should be first capturing group.

src/frameworks/svelte.ts

@@ -23,7 +23,7 @@ class SvelteFramework extends Framework {
 
   // for visualize the regex, you can use https://regexper.com/
   usageMatchRegex = [
-    '(\\$(_|t|format)|(get)\\(\\s*(_|t|format)\\s*\\))\\(\\s*[\'"`]({key})[\'"`]',
+    '(?:\\$(?:_|t|format)|(?:get)\\(\\s*(?:_|t|format)\\s*\\))\\(\\s*[\'"`]({key})[\'"`]',
   ]
 
   refactorTemplates(keypath: string) {