MM-53764 - Fix: Improve limits on Opengraph Data Cache (#24177)

* enforce strict opengraph cache entry size limit

* move json marshalling and error checking into parsOpenGraphMetadata fn

* fix linting

* fix potential nil deref

* Revert "fix potential nil deref"

This reverts commit 095bcd496e9b8d97ca63d3a99e2e46eec58ef7ae.

* Revert "fix linting"

This reverts commit f3e1f7b27634ca0567fd0fef01ac23f5e39009a7.

* Revert "move json marshalling and error checking into parsOpenGraphMetadata fn"

This reverts commit ba9a1e13b0fb9d4579077b7b37666e950a5fb6ed.

* Revert "enforce strict opengraph cache entry size limit"

This reverts commit d1de4a8fa40e58ac85c85f66de27ec5aca884b18.

* remove /opengraph api endpoint

* i18n

* removing unneeded action and reducer

server/channels/api4/api.go

@@ -81,8 +81,6 @@ type Routes struct {
 	OAuthApps *mux.Router // 'api/v4/oauth/apps'
 	OAuthApp  *mux.Router // 'api/v4/oauth/apps/{app_id:[A-Za-z0-9]+}'
 
-	OpenGraph *mux.Router // 'api/v4/opengraph'
-
 	SAML       *mux.Router // 'api/v4/saml'
 	Compliance *mux.Router // 'api/v4/compliance'
 	Cluster    *mux.Router // 'api/v4/cluster'
@@ -240,8 +238,6 @@ func Init(srv *app.Server) (*API, error) {
 
 	api.BaseRoutes.ReactionByNameForPostForUser = api.BaseRoutes.PostForUser.PathPrefix("/reactions/{emoji_name:[A-Za-z0-9\\_\\-\\+]+}").Subrouter()
 
-	api.BaseRoutes.OpenGraph = api.BaseRoutes.APIRoot.PathPrefix("/opengraph").Subrouter()
-
 	api.BaseRoutes.Roles = api.BaseRoutes.APIRoot.PathPrefix("/roles").Subrouter()
 	api.BaseRoutes.Schemes = api.BaseRoutes.APIRoot.PathPrefix("/schemes").Subrouter()
 
@@ -294,7 +290,6 @@ func Init(srv *app.Server) (*API, error) {
 	api.InitEmoji()
 	api.InitOAuth()
 	api.InitReaction()
-	api.InitOpenGraph()
 	api.InitPlugin()
 	api.InitRole()
 	api.InitScheme()