fix: type declarations don’t depend on internal typings

[geigerzaehler]

We prevent typescript from generating declarations that reference the @paypal/sdk-constants package. This package does not provide types, instead we use our own type declarations in ./src/types.d.ts. These declarations are not available to users of the library.

Fixes #125

[codecov]

Codecov Report

Merging #129 (89a3dbb) into main (e5caf02) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #129   +/-   ##
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  Coverage   94.37%   94.37%           
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  Files           4        4           
  Lines         160      160           
  Branches       56       56           
=======================================
  Hits          151      151           
  Misses          9        9           

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[gregjopa]

Awesome work @geigerzaehler! 💯 🥇 👍

I tested locally and the generated types no longer reference sdk-constants. Here's what I get for index.d.ts:

export * from "./components/PayPalButtons";
export * from "./components/PayPalMarks";
export * from "./components/PayPalMessages";
export * from "./ScriptContext";
export declare const FUNDING: Record<string, string>;

PR looks great! I appreciate you leaving a comment in the code explaining what's going on. There's one change request for a typo fix. After that's fixed, I'll merge it up.