refactor: remove -s flag

[ahmad-ibra]

Description

The proposal of this PR is to simplify our command API by reducing the number of flags we have and using the same flags in different commands.

Namely, this PR focuses on the --silent and --reconfigure flags. Instead of having both flags available for the NewInstallValidatorCmd and NewConfigureValidatorCmd, we can reduce to just using the --reconfigure flag in both commands.

The implications of these changes are this:

1. No flags passed in => interactive mode
2. If only -f is used in either the Install or Configure command => silent mode (ie no TUI prompts)
3. If -f and -r are used in conjuncture in either the Install or Configure command => reconfigure mode (interactive but with defaults from the config provided to users)
4. If a user runs the install and configure commands in sequence manually (ie without --check), they'll need to run the check command as follows to update their plugin rules: validator check -f validator.yaml -r

Tests

Ran the following:

• validator install --check => interactive on both install and configure side
• validator install --check -f validator.yaml => silent on both install and configure side
• validator install --check -f validator.yaml -r => reconfigure mode on both install and configure side

[codecov]

Codecov Report

Attention: Patch coverage is 42.10526% with 11 lines in your changes missing coverage. Please review.

Files	Patch %	Lines
pkg/services/validator/validator_service.go	0.00%	6 Missing ⚠️
pkg/cmd/validator/validator.go	37.50%	3 Missing and 2 partials ⚠️

@@            Coverage Diff             @@
##             main     #126      +/-   ##
==========================================
- Coverage   36.96%   36.86%   -0.10%     
==========================================
  Files          44       44              
  Lines        5119     5119              
==========================================
- Hits         1892     1887       -5     
- Misses       2882     2885       +3     
- Partials      345      347       +2     

Files	Coverage Δ
cmd/validator.go	79.47% <100.00%> (-0.79%)	⬇️
pkg/config/config.go	66.03% <ø> (ø)
...integration/_validator/testcases/test_validator.go	93.44% <100.00%> (ø)
pkg/cmd/validator/validator.go	54.02% <37.50%> (-0.45%)	⬇️
pkg/services/validator/validator_service.go	43.08% <0.00%> (ø)

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