Major rewrite: less repetition (#101)

* first step of rewriting: at least it compiles™

* fix tabs/spaces

* fix dabort on load

* fix preview crash

* sorting isnt done outside of loading

* step one of making remake_file useless

* camera/qr code cleanup

* fix dabort when folder is empty, and bring back preview optimization

* fix button for switching modes and show mode when folder is empty

* fix scanning qrs

* no more splash discrimination

* add debug helpers

* fix theme installing
turns out that wasnt such a good idea

* fix battery icon

* mistake

* themeplaza compatibility

* make use of load_data

* don't drink and copy-paste, kids

* fix user-agent

* remove useless

* cleanup includes

* not even used

* add splash buttons

* upgrade buttons drawing

* fix controls while preview is up

* improve positions

source/fs.c

@@ -99,11 +99,11 @@ Result close_archives(void)
     if(R_FAILED(res = FSUSER_CloseArchive(ArchiveSD))) return res;
     if(R_FAILED(res = FSUSER_CloseArchive(ArchiveHomeExt))) return res;
     if(R_FAILED(res = FSUSER_CloseArchive(ArchiveThemeExt))) return res;
-    
+
     return 0;
 }
  
-u64 file_to_buf(FS_Path path, FS_Archive archive, char** buf)
+u32 file_to_buf(FS_Path path, FS_Archive archive, char** buf)
 {
     Handle file;
     Result res = 0;
@@ -114,7 +114,7 @@ u64 file_to_buf(FS_Path path, FS_Archive archive, char** buf)
     *buf = calloc(1, size);
     FSFILE_Read(file, NULL, 0, *buf, size);
     FSFILE_Close(file);
-    return size;
+    return (u32)size;
 }
 
 u32 zip_file_to_buf(char *file_name, u16 *zip_path, char **buf)