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

[ZerdoX-x]

Fixes #1003

According to https://github.com/lokalise/i18n-ally/wiki/Custom-Framework ({key}) in regex should be first capturing group. I did not know about this when proposed #826, #1001

I guess it would be really nice to have tests for regular expressions as it's in the core of i18n-ally.

Maybe at least we can add this info in the comment above this one?

// for visualize the regex, you can use https://regexper.com/

Knowing that you must capture ({key}) as the first group is much more useful than knowing how to visualize regex. If you don't mind, I would like to open another PR which will add comments about this in every framework file, because the only place where I found this is wiki/Custom-Framework

[henrikvilhelmberglund]

Is there any way I can use this before this is merged? The extension is broken for me right now.

[ZerdoX-x]

@henrikvilhelmberglund I guess you have 2 options:

1. compile either 2.10.0 version or patch-2 branch from my repo, then install extension locally from vscode, disable regular one.
2. redefine default regex used for svelte-i18n using https://github.com/lokalise/i18n-ally/wiki/Custom-Framework (i have never done this and not sure if this is possible). see pr's diff to get new regex

[henrikvilhelmberglund]

@henrikvilhelmberglund I guess you have 2 options:

1. compile either 2.10.0 version or patch-2 branch from my repo, then install extension locally from vscode, disable regular one.
2. redefine default regex used for svelte-i18n using https://github.com/lokalise/i18n-ally/wiki/Custom-Framework (i have never done this and not sure if this is possible). see pr's diff to get new regex

I installed an older version (2.10.0) of the extension for now. You can do that by clicking the arrow next to Uninstall and choosing Install another version.... Thanks for responding. Hopefully this can be merged soon!

[ZerdoX-x]

@terales there was an issue in both of previous PR's, could you please take a look at this?