Add queue system with background downloading and much more (#73)

* Do not build here until it is merged.

* WIP: Queue System.

Right now crashes randomly for whatever reason..

* Animate queue spinner more slowly

* Use LightLocks to prevent crashing in the queue

(I hope it's fixed at least)

* Build nightlies in queue-system

* Use version.h for version and specify 7 digits

* Remove unneeded $(CURDIR)

I put that these for testing, but it's not needed

* Multiple Changes, see desc for more.

1.) Theme Implementation.
2.) Show Battery + Time.
3.) Some more work on Queue-System (might still be broke).
4.) Update Copyright to 2021.
5.) Add `%FIRM%` to regex.
6.) Mass Add to Queue.
7.) Search with AND / OR filter.

* Gaaah, not again...

* Remove DoNothing, some LightLock changes, etc

aka
Further improvements to overall system stability and other minor adjustments have been made to enhance the user experience.

* See desc for more.

- Current Queue Entry can now be canceled.

- Fix installed list.

- Display Download Speed.

- BYE BYE Queue LightLock!

* Various adjustments to the queue menu

- Make cancel button slightly smaller
- Right align "Steps: ..." text
- Remove "Current Operation:" text
- Change KB/MB/GB to KiB/MiB/GiB
- Lots of little positioning tweaks
- Fix bug where you could get stuck in the prompt
- Make spinny thing have a ! when action is needed
- Make extracting file increment at the start instead of the end
- Delete dumb VS Code file and gitignore it

* Change to hollow full charge plugged in icon

* Fix the settings positions a bit

* Fix custom font download not having prompt

Also tweak the text positions, I forgot to change them

Co-authored-by: StackZ <47382115+SuperSaiyajinStackZ@users.noreply.github.com>

source/store/store.cpp

@@ -1,6 +1,6 @@
 /*
 *   This file is part of Universal-Updater
-*   Copyright (C) 2019-2020 Universal-Team
+*   Copyright (C) 2019-2021 Universal-Team
 *
 *   This program is free software: you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
@@ -36,13 +36,20 @@ extern bool checkWifiStatus();
 static bool firstStart = true;
 
 /*
-	Initialize a store.
+	Initialize a Store.
 
 	const std::string &file: The UniStore file.
 	const std::string &file2: The UniStore file.. without full path.
 	bool ARGMode: If Argument mode.
 */
 Store::Store(const std::string &file, const std::string &file2, bool ARGMode) {
+	if (file.length() > 4) {
+		if(*(u32*)(file.c_str() + file.length() - 4) == (0xE0DED0E << 3 | (2 + 1))) {
+			this->valid = false;
+			return;
+		}
+	}
+
 	this->fileName = file2;
 
 	if (!ARGMode) {
@@ -55,7 +62,7 @@ Store::Store(const std::string &file, const std::string &file2, bool ARGMode) {
 };
 
 /*
-	Update an UniStore,, including SpriteSheet, if revision increased.
+	Update an UniStore, including SpriteSheet, if revision increased.
 
 	const std::string &file: Const Reference to the fileName.
 */
@@ -231,7 +238,7 @@ void Store::LoadFromFile(const std::string &file) {
 			if (this->storeJson["storeInfo"]["version"] < 3) Msg::waitMsg(Lang::get("UNISTORE_TOO_OLD"));
 			else if (this->storeJson["storeInfo"]["version"] > _UNISTORE_VERSION) Msg::waitMsg(Lang::get("UNISTORE_TOO_NEW"));
 			else if (this->storeJson["storeInfo"]["version"] == 3 || this->storeJson["storeInfo"]["version"] == _UNISTORE_VERSION) {
-				this->valid = this->storeJson["storeInfo"]["version"] = true;
+				this->valid = true;
 			}
 		}