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### Problem description
Saving a layout using the "Workspace -> Layout -> Save Layout ..."
button saved to the last writable path in the list that can be found in
the "Help -> About" menu. Instead, it should write to the first working
path encountered.
### Implementation description
Getting all of the writable paths, then picking the first one.
### Screenshots
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make before/after sceenshots -->
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Now that line numbers are not part of the line of code clicking them
makes the text editor lose focus. This PR changes that by allowing the
user to toggle breakpoints by clicking the field where the line number
is located.
Not only will the text editor retain focus when breakpoints are set, but
if other parts of ImHex had focus, then it will be transferred to the
text editor's current cursor position when the line number field is
clicked.
It is also possible to keep the focus where it was and only retain the
focus if the text editor was focused when the break point is set. The
change is very trivial so if that is preferred I can easily switch it.
A user complained that they imported a file by accident when they meant
to export it and as a result had trouble recovering the changes they
were trying to save. Auto-save saved the day but there is no reason for
not being able to undo changes after importing a pattern.
In fact, the previous implementation treated importing a pattern as a
reset on the editor instance which actually erased all previous undo
entries. Importing now is treated as a normal editing operation where
the entire file is replaced with the imported pattern.
Since all imports use AddText it was easy to add an undo entry to that
function while removing the part where the previous undo records were
being deleted.
Care is taken to add the preprocessed version of the imported file to
the undo buffer so that unwanted chars don't sneak in. A bug was found
in the handling of a tab char as well but hopefully it wont need to be
used anymore.
The pattern editor was resetting the flag that marked text changes on
every frame, but resolving a text change may take more than one frame,
so instead I created a function that allows the resetting of the text
changed boolean from view pattern editor.
Currently, when a pattern is evaluated the pattern editor will lose
focus regardless of how evaluation was triggered. This is specially
annoying when using f5 or auto-evaluate. Now whenever a pattern is
evaluated, focus is given to the pattern editor when evaluation ends.
JumptoLine didn't work for empty lines.
Co-authored-by: Nik <werwolv98@gmail.com>
