Fix: useless use of format! (cargo clippy warning)

Provide a more resilient and reliable searx instance

💄 Improved visual fidelity for the `simple` theme (#426)

✨ `LibreX` for the search engine (#429)

💡 Module comment text to better describe the module code (#428)

Merge branch 'rolling' into FEAT/314_startpage-for-the-search-engine

✨ feat(engine): provide startpage search engine (#314)

💄`websurfx` logo redesign for better understandability (#418)

✨ Config option to customize the cache invalidation/expiry time (#403)

:recycle: Refactor cache system (#399)

📝 typo in footer (#398)

:recycle: Clean some code, fix bug (#396)

🧹 chore: make clippy happy (#386)

Merge branch 'rolling' into rolling

Update redis_cacher.rs

Merge branch 'rolling' into PERF/384_optimize-the-performance-of-fetching-results-in-the-websurfx-search-engine-backend

Merge branch 'rolling' into rolling

♻️ refactor: code to take prebuilt client to request search results (#384)

⚡️ perf: rewrite the code by using a constant storing a prebuilt client globally for each thread (#384)

Updated redis_cacher.rs

#385 issue resolved

🔥 chore: remove the debug macro from the code (#302)

🚨 chore: make cargo clippy linter happy (#302)

♻️ refactor: rewrite the parsing of the upstream search engines option (#302)

⚰️ chore: remove the serialize & deserialize traits on the struct (#302)

♻️ refactor: remove the code to pass the `query` data into the `SearchResults` struct (#302)

♻️ refactor: remove the code to add the `query` & `style` in the `SearchResults` struct & also remove the associated fields from the struct (#302)

♻️ refactor: remove handlebar related code & add the templates module (#302)

💡 chore: add documentation to the code (#302)

♻️ refactor(routes): serve the new maud file for search page and remove unwanted functions and pass values to the maud html template directly (#302)

♻️ refactor(routes): serve new the maud files instead of handlebars files (#302)

♻️ refactor(maud): rewrite the frontend code with maud html framework (#302)

♻️ refactor: reimplement the random delay code without the rand crate (#380)

✨ `Brave` for the search engine (#335)

🔧 remove unnecessary clone call (#333)

🔧 Restricts the visibility of the `user-agent` helper module (#331)

Rename the error to NoSuchEngineFound and add the name of missing engine to it

Propagate errors upward, if an engine can't be initialized

Fix missing doc errors

Refactor the search result parsing

Create separate search_result_parser

🧹 chore: make github actions happy (#227)

Merge branch 'rolling' into feat-inform-user-when-no-engines-are-selected

✨ feat: add code to handle aggregation when no engines are selected (#227)

✨ feat: add new check value for no engine selected (#227)

✨ feat: implement code to fetch results based on parameters, cookies & config (#210)

✨ feat: add the safe search field in the `Cookie` struct (#210)

✨ feat: implement code to pass safe search option in the json results (#210)

🧹 chore: make clippy happy (#244)

🛠️ fix: improve the documentation & move code in the correct files (#244)