🌐 i18n(vscode): update language tool configuration

- add new words to ltex.dictionary.en-GB.txt for better coverage
- create ltex.disabledRules.en-GB.txt to ignore specific rules
- add hiddenFalsePositives configuration for improved accuracy

.vscode/ltex.dictionary.en-GB.txt

@@ -1 +1,11 @@
 cull-gmail
+version-url
+circleci-url
+circleci-badge
+crates-url
+docs-url
+mit-url
+ghub-url
+BuyMeaCoffee
+GitHubSponsors
+bmac-url