[1.x] Prevent `pulse:check` from filling the file cache (laravel#260)

* Fix continually growing cache with file cache

* Prevent shared beat from impacting isolated beat

* Fix static analysis

* Formatting

Co-authored-by: Tim MacDonald <[email protected]>

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Co-authored-by: Tim MacDonald <[email protected]>

Fix flaky tests

Update upgrade guide

Remove default `web` middleware (laravel#152)

[1.x] Postgres support (laravel#64)

* wip

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* Fix code styling

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Co-authored-by: jessarcher <[email protected]>

[1.x] Allow concern usage for 3rd parties (laravel#118)

* Allow recorder inheritance

* Recorder inheritance - only update Concerns

Fix Class "Str" not found error on fresh install (laravel#74)

* Add Illuminate\Support\Str import to queues.blade.php

* Add Illuminate\Support\Str import to slow-outgoing-requests.blade.php

* Add Illuminate\Support\Str import to cache.blade.php

Update server online animation