fix: websocket and fetch fix for browser

[berendsliedrecht]

• fix: fetch & websocket browser support

This add support for fetch and websocket in the browser environment. Typings had to be added to prevent errors in the respective outboundtransport

(Not sure if these typings are the correct way)

[codecov-commenter]

Codecov Report

Merging #291 (5d908de) into main (799b6c8) will decrease coverage by 0.30%.
The diff coverage is 31.57%.

❗ Current head 5d908de differs from pull request most recent head 9d0e2d0. Consider uploading reports for the commit 9d0e2d0 to get more accurate results

@@            Coverage Diff             @@
##             main     #291      +/-   ##
==========================================
- Coverage   88.47%   88.17%   -0.31%     
==========================================
  Files         217      217              
  Lines        3897     3906       +9     
  Branches      431      449      +18     
==========================================
- Hits         3448     3444       -4     
- Misses        449      462      +13     

Impacted Files	Coverage Δ
src/utils/fetch.ts	47.05% <18.18%> (-52.95%)	⬇️
src/utils/ws.ts	62.50% <40.00%> (-37.50%)	⬇️
src/utils/environment.ts	75.00% <66.66%> (-25.00%)	⬇️

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