Add some DB optimizations (#6249)

* Set a maximum journal size limit (WAL file size) of 25MB

The previous value was null, which meant unlimited growth. This can affect performance, since the WAL file performance as a cache will worsen the larger it is

* When scheduling the vacuum task, make sure the user has enough free disk storage, since vacuuming can duplicate the DB sizes in disk

libraries/matrix/impl/src/main/kotlin/io/element/android/libraries/matrix/impl/storage/SqliteStoreBuilder.kt

@@ -7,6 +7,8 @@
 
 package io.element.android.libraries.matrix.impl.storage
 
+import io.element.android.libraries.core.data.ByteUnit
+import io.element.android.libraries.core.data.megaBytes
 import io.element.android.libraries.matrix.impl.paths.SessionPaths
 import org.matrix.rustcomponents.sdk.ClientBuilder
 import org.matrix.rustcomponents.sdk.SqliteStoreBuilder as SdkSqliteStoreBuilder
@@ -17,12 +19,12 @@ interface SqliteStoreBuilder {
 }
 
 class RustSqliteStoreBuilder(
-    private val sessionPaths: SessionPaths,
+    sessionPaths: SessionPaths,
 ) : SqliteStoreBuilder {
     private var inner = SdkSqliteStoreBuilder(
         dataPath = sessionPaths.fileDirectory.absolutePath,
         cachePath = sessionPaths.cacheDirectory.absolutePath,
-    )
+    ).journalSizeLimit(25.megaBytes.into(ByteUnit.BYTES).toUInt())
 
     override fun passphrase(passphrase: String?): SqliteStoreBuilder {
         inner = inner.passphrase(passphrase)

libraries/matrix/impl/src/main/kotlin/io/element/android/libraries/matrix/impl/workmanager/PerformDatabaseVacuumWorkManagerRequest.kt

@@ -32,7 +32,13 @@ class PerformDatabaseVacuumWorkManagerRequest(
             .addTag(workManagerTag(sessionId, WorkManagerRequestType.DB_VACUUM))
             .setInputData(data)
             // Only run when the device is idle to avoid impacting user experience
-            .setConstraints(Constraints.Builder().setRequiresDeviceIdle(true).build())
+            .setConstraints(
+                Constraints.Builder()
+                    .setRequiresDeviceIdle(true)
+                    // Vacuuming can duplicate the DB sizes in disk
+                    .setRequiresStorageNotLow(true)
+                    .build()
+            )
             .build()
 
         return Result.success(listOf(workRequest))