repositoryPathPattern fixes

Created by: lguychard

Rel #4370

The changes introduced here are twofold:

• Always resolve Sourcegraph mapped repo name in browser extension code
• Use the raw repo name when getting the definition URL

Test plan:

• Test code intelligence hovers on a repo with repositoryPathPattern
• Test in-code-host jump-to-definition on a repo with repositoryPathPattern
• Test intelligence hovers on a repo without repositoryPathPattern
• Test in-code-host jump-to-definition on a repo without repositoryPathPattern
• Test code intelligence, jump-to-definition on the webapp without repositoryPathPattern
• Test code intelligence, jump-to-definition on the with repositoryPathPattern

Created by: lguychard

@felixfbecker PTAL

Created by: codecov[bot]

Codecov Report

Merging #4470 into master will increase coverage by 0.21%. The diff coverage is 58.1%.

@@            Coverage Diff             @@
##           master    #4470      +/-   ##
==========================================
+ Coverage   47.45%   47.66%   +0.21%     
==========================================
  Files         722      724       +2     
  Lines       43828    43885      +57     
  Branches     1752     1758       +6     
==========================================
+ Hits        20797    20917     +120     
+ Misses      21056    20994      -62     
+ Partials     1975     1974       -1

Impacted Files	Coverage Δ
shared/src/util/errors.ts	72.22% <ø> (ø)
shared/src/util/url.ts	89.47% <ø> (ø)
browser/src/libs/phabricator/index.tsx	50% <ø> (ø)
browser/src/libs/phabricator/file_info.ts	32.14% <0%> (+4.01%)
browser/src/libs/phabricator/util.tsx	7.56% <0%> (ø)
browser/src/libs/gitlab/scrape.ts	25.86% <0%> (ø)
browser/src/libs/phabricator/backend.tsx	7.73% <0%> (ø)
browser/src/libs/gitlab/file_info.ts	28% <0%> (ø)
browser/src/libs/bitbucket/context.tsx	8.69% <0%> (ø)
browser/src/libs/code_intelligence/code_views.ts	92.59% <100%> (+11.82%)
... and 24 more