bump: update version to 1.0.0-beta.4 across files

Updates the version number from 1.0.0-beta.3 to 1.0.0-beta.4 in 
package.json, package-lock.json, Cargo.toml, Cargo.lock, and 
tauri.conf.json to reflect the latest release. This change 
ensures consistency across project files and prepares for the 
next deployment.

package-lock.json

@@ -1,6 +1,6 @@
 {
     "name": "iptvnator",
-    "version": "1.0.0-beta.3",
+    "version": "1.0.0-beta.4",
     "lockfileVersion": 3,
     "requires": true,
     "packages": {

package.json

@@ -1,6 +1,6 @@
 {
     "name": "iptvnator",
-    "version": "1.0.0-beta.3",
+    "version": "1.0.0-beta.4",
     "description": "IPTV player application.",
     "homepage": "https://github.com/4gray/iptvnator",
     "author": {

src-tauri/Cargo.lock

@@ -4,7 +4,7 @@ version = 3
 
 [[package]]
 name = "IPTVnator"
-version = "1.0.0-beta.3"
+version = "1.0.0-beta.4"
 dependencies = [
  "chrono",
  "fix-path-env",

src-tauri/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "IPTVnator"
-version = "1.0.0-beta.3"
+version = "1.0.0-beta.4"
 description = "IPTVnator"
 authors = ["4gray"]
 license = "MIT"

src-tauri/tauri.conf.json

@@ -1,7 +1,7 @@
 {
     "$schema": "../node_modules/@tauri-apps/cli/config.schema.json",
     "productName": "iptvnator",
-    "version": "1.0.0-3",
+    "version": "1.0.0-4",
     "identifier": "com.4gray.dev",
     "build": {
         "frontendDist": "../dist",