Target ES6 properly

[ferferga]

See my previous fix at generator: OpenAPITools/openapi-generator#10308

See https://www.typescriptlang.org/tsconfig#target and https://www.typescriptlang.org/tsconfig#module

Default:
CommonJS if target is ES3 or ES5,,ES6/ES2015 otherwise.

There's no tree shaking right now

[codecov-commenter]

Codecov Report

Merging #341 (2554eaf) into master (12ff58b) will decrease coverage by 0.00%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #341      +/-   ##
==========================================
- Coverage   99.79%   99.79%   -0.01%     
==========================================
  Files          78       78              
  Lines         493      482      -11     
  Branches       52       46       -6     
==========================================
- Hits          492      481      -11     
  Misses          1        1              

Impacted Files	Coverage Δ
src/api.ts	100.00% <0.00%> (ø)
src/jellyfin.ts	100.00% <0.00%> (ø)
src/discovery/discovery-service.ts	100.00% <0.00%> (ø)
src/models/recommended-server-issue.ts	100.00% <0.00%> (ø)
src/discovery/recommended-server-discovery.ts	100.00% <0.00%> (ø)

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[thornbill]

Could you add a note in the breaking changes section of the README also? Thanks!

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
0.0% Duplication

[ferferga]

@thornbill I took the liberty to also add the upgrade to Axios v1 at #300 to the breaking changes section.

I also used 0.8.0 as the next logical step, but please ping me if you want me to use another versioning and I can fix it without any problem.