[chore] improved router logging, recovery and error handling (#705)

* move panic recovery to logging middleware, improve logging + panic recovery logic

Signed-off-by: kim <grufwub@gmail.com>

* remove dead code

Signed-off-by: kim <grufwub@gmail.com>

* remove skip paths code

Signed-off-by: kim <grufwub@gmail.com>

* re-enable log quoting

Signed-off-by: kim <grufwub@gmail.com>

* use human-friendly bytesize in logging body size

Signed-off-by: kim <grufwub@gmail.com>

* only disable quoting in debug builds

Signed-off-by: kim <grufwub@gmail.com>

* use logrus level instead of debug.DEBUG() to enable/disable quoting

Signed-off-by: kim <grufwub@gmail.com>

* shutup linter

Signed-off-by: kim <grufwub@gmail.com>

* fix instance tests

Signed-off-by: kim <grufwub@gmail.com>

* fix gin test contexts created with missing engine HTML renderer

Signed-off-by: kim <grufwub@gmail.com>

* add note regarding not logging query parameters

Signed-off-by: kim <grufwub@gmail.com>

* better explain 'DisableQuoting' logic

Signed-off-by: kim <grufwub@gmail.com>

* add license text

Signed-off-by: kim <grufwub@gmail.com>

internal/api/client/status/statusfavedby_test.go

@@ -33,6 +33,7 @@ import (
 	"github.com/superseriousbusiness/gotosocial/internal/api/client/status"
 	"github.com/superseriousbusiness/gotosocial/internal/api/model"
 	"github.com/superseriousbusiness/gotosocial/internal/oauth"
+	"github.com/superseriousbusiness/gotosocial/testrig"
 )
 
 type StatusFavedByTestSuite struct {
@@ -47,7 +48,7 @@ func (suite *StatusFavedByTestSuite) TestGetFavedBy() {
 
 	// setup
 	recorder := httptest.NewRecorder()
-	ctx, _ := gin.CreateTestContext(recorder)
+	ctx, _ := testrig.CreateGinTestContext(recorder, nil)
 	ctx.Set(oauth.SessionAuthorizedApplication, suite.testApplications["application_2"])
 	ctx.Set(oauth.SessionAuthorizedToken, oauthToken)
 	ctx.Set(oauth.SessionAuthorizedUser, suite.testUsers["local_account_2"])