Opti : sessionStorage for storing tasks data

[tu2-atmanand]

• sessionStorage integrated in the code to store and process tasks data in the RAM itself.
• removed all the fs libraries and migrated on using Obsidian native function to read/write data to json files using adapter and to read/write MD files.
• Converted few interfaces to types
• Combined pending and completed tasks into one as allTasks while sending as argument to the Columns.tsx component
  • This solved the problem of unnecessary calling the renderColumns function with empty data.
• Improved the structure of the codebase, by putting all the file operations related code to single file.

[tu2-atmanand]

The implemented features will be tested in the pluginTesting branch thoroughly, for now all the implemented functionalities are working fine. Merging the PR.