feat(gui, tauri): Save settings in Tauri storage (#102)

- Implemented dual persistence strategy:
  - **User Settings**: Persisted across app restarts using `tauri-plugin-store`.
  - **Transient State**: Persisted across page reloads using `sessionStorage`.
- Added `settingsSlice` reducer for managing persistent user settings.
- Updated Redux store configuration to handle multiple persistence layers.
- Added a new Settings page in the GUI where users can specify custom Electrum RPC URLs for Bitcoin and Monero node URLs.
  - Users can input their preferred Electrum server (`ssl://host:port`) and Monero daemon (`http://host:port`).
  - Input fields include validation to ensure correct URL formats.
  - Settings persist across application restarts using Tauri's storage plugin.
  - A reset option is available to revert to default settings.
- Improved the Daemon Controller in the Help page:
  - Renamed `RpcControlBox` to `DaemonControlBox` for clarity.
  - Users can now start the daemon manually if it isn't running or has failed.
  - Added a "Restart GUI" button to apply new settings immediately.
  - Displayed the daemon's status within the controller.
- Upgraded Tauri and related plugins to stable version `2.0.0`:
  - Updated `tauri`, `tauri-build`, and `tauri-utils` to `2.0.0`.
  - Ensured compatibility with the latest stable release.
- Updated Tauri plugins to version `2.0.0`:
  - `tauri-plugin-clipboard-manager`
  - `tauri-plugin-shell`
  - Added new plugins:
    - `tauri-plugin-store` for settings persistence.
    - `tauri-plugin-process` to enable application relaunch.
- Deferred Context initialization until explicitly triggered from the frontend.
  - Moved Context setup from the `setup` function to a new `initialize_context` Tauri command.
  - Allows the application to start without immediately initializing the backend context.
  - Context initialization now considers user-provided settings for Electrum and Monero nodes.
- Introduced a `ValidatedTextField` component for form inputs with validation logic.
  - Provides immediate feedback on input validity.
  - Used in the Settings page for Electrum and Monero node URLs.
- If the user provides an override Monero remote daemon, we check if it reachable and on the correct network before starting the `monero-wallet-rpc`
- Changed `bitcoin_confirmation_target` type from `usize` to `u16`.

src-gui/src/renderer/components/other/ValidatedTextField.tsx

@@ -0,0 +1,55 @@
+import { TextFieldProps, TextField } from "@material-ui/core";
+import { useState, useEffect, useCallback } from "react";
+
+interface ValidatedTextFieldProps extends Omit<TextFieldProps, "onChange" | "value"> {
+  value: string | null;
+  isValid: (value: string) => boolean;
+  onValidatedChange: (value: string | null) => void;
+  allowEmpty?: boolean;
+  helperText?: string;
+}
+
+export default function ValidatedTextField({
+  label,
+  value = "",
+  isValid,
+  onValidatedChange,
+  helperText = "Invalid input",
+  variant = "standard",
+  allowEmpty = false,
+  ...props
+}: ValidatedTextFieldProps) {
+  const [inputValue, setInputValue] = useState(value || "");
+
+  const handleChange = useCallback(
+    (newValue: string) => {
+      const trimmedValue = newValue.trim();
+      setInputValue(trimmedValue);
+
+      if (trimmedValue === "" && allowEmpty) {
+        onValidatedChange(null);
+      } else if (isValid(trimmedValue)) {
+        onValidatedChange(trimmedValue);
+      }
+    },
+    [allowEmpty, isValid, onValidatedChange]
+  );
+
+  useEffect(() => {
+    setInputValue(value || "");
+  }, [value]);
+
+  const isError = allowEmpty && inputValue === "" ? false : !isValid(inputValue);
+
+  return (
+    <TextField
+      label={label}
+      value={inputValue}
+      onChange={(e) => handleChange(e.target.value)}
+      error={isError}
+      helperText={isError ? helperText : ""}
+      variant={variant}
+      {...props}
+    />
+  );
+}