[FEAT] Ability to set workspace profile image (#847)

* WIP workspace pfp, CRUD functions complete

* implement fetching workspace pfp in UserIcon component

* update UI for workspace settings pfp

* minor css refactor

* WIP fixes to workspace pfp

* create responseCache for workspace pfp blob to improve performance

* fix cache not clearing when removing workspace pfp and remove unneeded util

* load workspace image once, dont reload

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Co-authored-by: timothycarambat <rambat1010@gmail.com>

server/prisma/migrations/20240301002308_init/migration.sql

@@ -0,0 +1,2 @@
+-- AlterTable
+ALTER TABLE "workspaces" ADD COLUMN "pfpFilename" TEXT;

server/prisma/schema.prisma

@@ -100,6 +100,7 @@ model workspaces {
   chatModel                    String?
   topN                         Int?                           @default(4)
   chatMode                     String?                        @default("chat")
+  pfpFilename     String?
   workspace_users              workspace_users[]
   documents                    workspace_documents[]
   workspace_suggested_messages workspace_suggested_messages[]