refactor: rename to localDatastoreDescription

reducing confusion + forcing fresh translation without historical ones

public/locales/en/files.json

@@ -114,8 +114,8 @@
   "clickToDismiss": "Click to dismiss",
   "clickToCancel": "Click to cancel",
   "blocks": "Blocks",
-  "allBlocks": "All blocks",
-  "allBlocksDescription": "Total size of blocks on your entire IPFS node; this includes everything in Files view (MFS), plus any additional low-level pins and any temporary cached blocks that were not garbage-collected yet.",
+  "localDatastore": "Local Datastore",
+  "localDatastoreDescription": "Total size of all blocks currently stored on your IPFS node; this includes everything in the Files view (MFS), plus any additional low-level pins and any temporary cached blocks that were not garbage-collected yet.",
   "filesDescription": "Total size of data in the current directory (if a subdirectory, the size of all data in Files view (MFS) is also displayed). If you have a big directory that is only partially fetched, a total size listed here could be bigger than your local repository.",
   "pinningQueue": "Pinning queue",
   "more": "More",

src/files/header/Header.js

@@ -82,7 +82,7 @@ class Header extends React.Component {
               : size(filesSize) }
           </BarOption>
 
-          <BarOption title={t('allBlocksDescription')} text={t('allBlocks')}>
+          <BarOption title={t('localDatastoreDescription')} text={t('localDatastore')}>
             { size(repoSize) }
           </BarOption>