[FL-3174] Dolphin builder in ufbt; minor ufbt/fbt improvements (#2601)

* ufbt: added "dolphin_ext" target (expects "external" subfolder in cwd with dolphin assets); cleaned up unused code
* ufbt: codestyle fixes
* scripts: fixed style according to ruff linter
* scripts: additional cleanup & codestyle fixes
* github: pass target hw code when installing local SDK with ufbt
* ufbt: added error message for missing folder in dolphin builder
* scripts: more linter fixes
* sdk: added flipper_format_stream; ufbt: support for --extra-define
* fbt: reduced amount of global defines
* scripts, fbt: rearranged imports

Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>

scripts/fbt_tools/fbt_extapps.py

@@ -3,23 +3,19 @@ import os
 import pathlib
 import shutil
 from dataclasses import dataclass, field
-from typing import Optional, TypedDict
-
-from ansi.color import fg
+from typing import Optional
 
 import SCons.Warnings
-from SCons.Action import Action
-from SCons.Builder import Builder
-from SCons.Errors import UserError
-from SCons.Node import NodeList
-from SCons.Node.FS import File, Entry
-
+from ansi.color import fg
 from fbt.appmanifest import FlipperApplication, FlipperAppType, FlipperManifestException
 from fbt.elfmanifest import assemble_manifest_data
 from fbt.fapassets import FileBundler
 from fbt.sdk.cache import SdkCache
 from fbt.util import extract_abs_dir_path
-
+from SCons.Action import Action
+from SCons.Builder import Builder
+from SCons.Errors import UserError
+from SCons.Node.FS import Entry, File
 
 _FAP_META_SECTION = ".fapmeta"
 _FAP_FILEASSETS_SECTION = ".fapassets"
@@ -289,7 +285,7 @@ def GetExtAppByIdOrPath(env, app_dir):
     try:
         # Maybe user passed an appid?
         app = appmgr.get(app_dir)
-    except FlipperManifestException as _:
+    except FlipperManifestException:
         # Look up path components in known app dirs
         for dir_part in reversed(pathlib.Path(app_dir).parts):
             if app := appmgr.find_by_appdir(dir_part):