corrected the formatting issue

lib/db/collections_db.dart

@@ -53,19 +53,19 @@ class CollectionsDB {
   static List<String> onCreate(String tableName) {
     return [
       '''
-				CREATE TABLE $tableName (
-					$columnID INTEGER PRIMARY KEY NOT NULL,
-					$columnOwner TEXT NOT NULL,
-					$columnEncryptedKey TEXT NOT NULL,
-					$columnKeyDecryptionNonce TEXT,
-					$columnName TEXT,
-					$columnType TEXT NOT NULL,
-					$columnEncryptedPath TEXT,
-					$columnPathDecryptionNonce TEXT,
-					$columnSharees TEXT,
-					$columnUpdationTime TEXT NOT NULL
-				);
-		'''
+        CREATE TABLE $tableName (
+          $columnID INTEGER PRIMARY KEY NOT NULL,
+          $columnOwner TEXT NOT NULL,
+          $columnEncryptedKey TEXT NOT NULL,
+          $columnKeyDecryptionNonce TEXT,
+          $columnName TEXT,
+          $columnType TEXT NOT NULL,
+          $columnEncryptedPath TEXT,
+          $columnPathDecryptionNonce TEXT,
+          $columnSharees TEXT,
+          $columnUpdationTime TEXT NOT NULL
+        );
+    '''
     ];
   }
 
@@ -73,16 +73,16 @@ class CollectionsDB {
     return [
       ...onCreate(collectionsTableCopy),
       '''
-				INSERT INTO $collectionsTableCopy
-				SELECT *
-				FROM $collectionsTable;
+        INSERT INTO $collectionsTableCopy
+        SELECT *
+        FROM $collectionsTable;
       ''',
       '''
-				DROP TABLE $collectionsTable;
+        DROP TABLE $collectionsTable;
       ''',
       '''
-				ALTER TABLE $collectionsTableCopy 
-				RENAME TO $collectionsTable;
+        ALTER TABLE $collectionsTableCopy 
+        RENAME TO $collectionsTable;
     '''
     ];
   }
@@ -90,12 +90,12 @@ class CollectionsDB {
   static List<String> addEncryptedName() {
     return [
       '''
-				ALTER TABLE $collectionsTable
-				ADD COLUMN $columnEncryptedName TEXT;
+        ALTER TABLE $collectionsTable
+        ADD COLUMN $columnEncryptedName TEXT;
       ''',
       '''ALTER TABLE $collectionsTable
-				ADD COLUMN $columnNameDecryptionNonce TEXT;
-			'''
+        ADD COLUMN $columnNameDecryptionNonce TEXT;
+      '''
     ];
   }
 

lib/db/files_db.dart

@@ -104,15 +104,15 @@ class FilesDB {
       ...onCreate(tableCopy),
       '''
         INSERT INTO $tableCopy
-				SELECT *
-				FROM $table;
+        SELECT *
+        FROM $table;
       ''',
       '''
-				DROP TABLE $table;
+        DROP TABLE $table;
       ''',
       '''
-				ALTER TABLE $tableCopy 
-				RENAME TO $table;
+        ALTER TABLE $tableCopy 
+        RENAME TO $table;
     '''
     ];
   }

pubspec.yaml

@@ -91,26 +91,30 @@ flutter:
   assets:
     - assets/
   fonts:
-    - family: NunitoSans
-      fonts:
-        - asset: fonts/NunitoSans-Regular.ttf
-        - asset: fonts/NunitoSans-Bold.ttf
-    - family: Montserrat
-      fonts:
-        - asset: fonts/Montserrat-Medium.ttf
+  - family: NunitoSans
+    fonts:
+      - asset: fonts/NunitoSans-Regular.ttf
+      - asset: fonts/NunitoSans-Bold.ttf
+  - family: Montserrat
+    fonts:
+      - asset: fonts/Montserrat-Medium.ttf
 
   # The following line ensures that the Material Icons font is
   # included with your application, so that you can use the icons in
   # the material Icons class.
   uses-material-design: true
+
   # To add assets to your application, add an assets section, like this:
   # assets:
   #  - images/a_dot_burr.jpeg
   #  - images/a_dot_ham.jpeg
+
   # An image asset can refer to one or more resolution-specific "variants", see
   # https://flutter.dev/assets-and-images/#resolution-aware.
+
   # For details regarding adding assets from package dependencies, see
   # https://flutter.dev/assets-and-images/#from-packages
+
   # To add custom fonts to your application, add a fonts section here,
   # in this "flutter" section. Each entry in this list should have a
   # "family" key with the font family name, and a "fonts" key with a