feat(docs): New repair and statistics pages

docs/docs/administration/Repair-page.md

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+# Repair Page
+
+The repair page is designed to give information to the system administrator about files that are not tracked, or offline paths.
+
+## Natural State
+
+In this situation, everything is in its place and there is no problem that the system administrator should be aware of.
+
+<img src={require('./img/Repair-page.png').default} title="server statistic" />
+
+## Any Other Situation
+
+:::note ram usge
+Several users report a situation where the page fails to load, in order to solve this problem you should try to allocate more RAM for Immich, if the problem continues, you should stop using the reverse proxy while loading the page.
+:::
+
+Any other state describes the following 3 states:
+
+- MATCHES - These files are matched by their checksums.
+
+- OFFLINE PATHS - These files are the results of manual deletion of the default upload library.
+
+:::tip
+To get rid of Offline paths you can follow this [guide](/docs/guides/remove-offline-paths.md)
+:::
+
+- UNTRACKS FILES - These files are not tracked by the application. They can be the results of failed moves, interrupted uploads, or left behind due to a bug.
+
+In addition, you can download the information from a page, mark everything (in order to check hashing) and correct the problem if a match is found in the hashing.
+
+<img src={require('./img/Repair-page-1.png').default} title="server statistic" />

docs/docs/administration/server-stats.md

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+# Server Stats
+
+Server statistics to show the total number of videos, photos, and usage per user.
+
+:::info
+If a storage quota has been defined for the user, the usage number will be displayed as a percentage of the total storage quota allocated to him.
+:::
+
+:::info External library
+External library is not included in the storage quota.
+:::
+
+<img src={require('./img/server-stats.png').default} title="server statistic" />