Reducing cotainer size and add layer for optimize building for frontend

[Rajgupta36]

This PR reduce size and optimize the image by removing unnecessary build processes and introducing layering for better optimization. The changes are focused on reducing size , increasing performance, and reducing resource consumption.

Changes Made:

1. Removed Build Process :- shifted the Tauri application build process to be executed directly in the bash terminal of container. This change allows for better control over the build process and results in smaller, more optimized images.

2. Added dockerignore file :- image should contain only necessay file. not generated files by tauri like target and schemas also i excluded tsc generated folder.

3. Introduce Layering :- i didn't make any changes in dockerfile. i just add package.json before the copying application process if package.json doesn't have any changes then it's cached all necessasy dependecies.

  COPY package.json package-lock.json ./
  RUN npm install
  COPY . .

Benefits :

• Reduced image size
• optimized building
• low building time

Related issue :
closes #63

result:

Build Logs:

[Rajgupta36]

@Pranav0-0Aggarwal , please check this pr.

[Rajgupta36]

My goal was to keep the image size under 1GB, but due to required dependencies, achieving this wasn't possible for me . I've optimized it as much as possible. Let me know if you have suggestions for further optimizations.