feat: add i18n support for the web ui

[LinuxSuRen]

It will switch the language base on the browser setting.

See the screenshot

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
0.0% Duplication

[github-actions]

There are 17 test cases:

API	Average	Max	Min	Count	Error
POST http://localhost:8080/server.Runner/FunctionsQuery	2.462794ms	2.462794ms	2.462794ms	1	0
POST http://localhost:8080/server.Runner/GetSuites	1.392997ms	1.392997ms	1.392997ms	1	0
POST http://localhost:8080/server.Runner/DeleteTestSuite	1.317797ms	2.278295ms	357.299µs	2	1
POST http://localhost:8080/server.Runner/CreateTestSuite	1.053697ms	1.053697ms	1.053697ms	1	0
POST http://localhost:8080/server.Runner/PopularHeaders	907.898µs	907.898µs	907.898µs	1	0
POST http://localhost:8080/server.Runner/GetSuggestedAPIs	834.898µs	834.898µs	834.898µs	1	0
POST http://localhost:8080/server.Runner/GetTestCase	822.198µs	822.198µs	822.198µs	1	0
POST http://localhost:8080/server.Runner/GetTestSuite	821.798µs	821.798µs	821.798µs	1	0
POST http://localhost:8080/server.Runner/GetStores	814.398µs	814.398µs	814.398µs	1	0
POST http://localhost:8080/server.Runner/GetSecrets	688.598µs	688.598µs	688.598µs	1	0
POST http://localhost:8080/server.Runner/ListConverter	658.098µs	658.098µs	658.098µs	1	0
POST http://localhost:8080/server.Runner/ListTestCase	656.998µs	935.997µs	377.999µs	2	1
POST http://localhost:8080/server.Runner/UpdateTestSuite	609.298µs	609.298µs	609.298µs	1	1
POST http://localhost:8080/server.Runner/ListCodeGenerator	544.899µs	544.899µs	544.899µs	1	0
POST http://localhost:8080/server.Runner/GetVersion	530.099µs	530.099µs	530.099µs	1	0
POST http://localhost:8080/server.Runner/ConvertTestSuite	454.799µs	454.799µs	454.799µs	1	1
POST http://localhost:8080/server.Runner/GenerateCode	412.399µs	412.399µs	412.399µs	1	1

[codacy-production]

Coverage summary from Codacy

See diff coverage on Codacy

Coverage variation	Diff coverage
-0.15%	∅

Coverage variation details

	Coverable lines	Covered lines	Coverage
Common ancestor commit (37700ec)	5230	4451	85.11%
Head commit (699cc4d)	5230 (+0)	4443 (-8)	84.95% (-0.15%)

Coverage variation is the difference between the coverage for the head and common ancestor commits of the pull request branch: <coverage of head commit> - <coverage of common ancestor commit>

Diff coverage details

	Coverable lines	Covered lines	Diff coverage
Pull request (#187)	0	0	∅ (not applicable)

Diff coverage is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: <covered lines added or modified>/<coverable lines added or modified> * 100%

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