Added Low Pass Filter feature

[ChrisWu0000]

Description

I added a low-pass filter feature to the Plot_Dash_Item, allowing users to filter out data points that exceed a configurable min/max threshold. This improves data visualization by removing outliers and unwanted noise.

This PR closes #336.

Developer Testing

Here's what I did to test my changes:

• Enabled and disabled the low_pass_filter toggle to see if it affects the graph.
• Set different min_threshold and max_threshold values and verified correct filtering.
• Confirmed that out-of-range data points are ignored while valid points are plotted.
• Checked dynamic updates, changing thresholds and graph should immediately affect incoming data.
• If min_threshold > max_threshold, the values are swapped automatically.
• When the filter is off, all points should be displayed as expected.

Reviewer Testing

Here's what you should do to quickly validate my changes:

• Toggle the Low-Pass Filter ON/OFF and check if filtering applies correctly.
• Set Min and Max Threshold values and verify that out-of-range data is removed.
• Ensure that disabling the filter restores all data points.
• Check UI behavior when modifying threshold values.

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This change is 

[ChrisYx511]

Hi! This seems right from my perspective, but I would consult with the electrical people to make sure that this is what they meant. You can ping @ Ash Lang on Slack in #electrical (or I can do it if you prefer) and we can talk more during meeting next week! I / @zangjiucheng will approve then.
Thanks for the PR!